Two Tvs same channel different commercials

[FennecTECH]

up while i was in minnesota a few years back   i remember futzing arround with televisions   an newer one and an older one i had on the same channel and the programming was the same     but the commercials were different i distinctly remember this and have never been able to find a reason   maby someone here can enlighten me the two tvs were old analogue  and just normal TVs   i have no ide how   been trying to figure it out for ever!

[miguelvp]

HD vs SD or where they exactly the same channel?
Cable vs Aerial, or where they the same method to tune into those channels?
different cable companies? different region programs?

[IanB]

The "channel" on a TV can have two different meanings. It can mean the UHF transmission channel (frequency), or it can mean the programming channel (e.g. NBC).

It is possible for two different local TV stations to broadcast the same programming on different UHF channels from different antennas. When this occurs, the commercials are likely to be chosen by the local TV station and not by the remote network program source (this is how your local TV station can give you commercials for businesses in your local city and not some city on the other side of the country).

So...if you had two different TVs tuned into two different local TV stations from different broadcast antennas, but both showing the same programming, then you would likely see different commercials. How this might happen in practice is one TV might be using a directional antenna on the roof, and the other TV might be using a set top antenna pointing in a different direction.

[bobcat]

If you have cable or satellite and a set top box, the company will put commercials on that are aimed at your demographic. So if you are watching with one tv on a cable box, and another tv without a cable box, you will likely to see some different commercials. Targeted tv ads are a big industry.

[FennecTECH]

they were bolth Arial TVs  receving the same frequency (i think one of them had no frequency knob instaid had preset knobs) but bolth were the same tv channel and same network      no cable   just two aging arial televisions 

[IanB]

they were bolth Arial TVs  receving the same frequency (i think one of them had no frequency knob instaid had preset knobs) but bolth were the same tv channel and same network      no cable   just two aging arial televisions

If both TVs were tuned into the same frequency they would be receiving the same signal and would be showing exactly the same picture. Therefore if each TV was showing a different picture at the same time during commercials, they were of necessity tuned into different frequencies and receiving different broadcast channels. There is no other possibility.

[FennecTECH]

i know right      i think it may be time for the tin foil hat 

[FennecTECH]

they probally had different broadcast stations         

[Psi]

They would have been receiving the same TV channel but on different frequencies.
There really isn't any other explanation.

[TheBay]

Where I live we get TV from 2 different countries, I have line of sight to 2 transmitters,

So we should get Wales TV, but I can also pick up a transmitter in England. Old analogue TV's this was no issue as everyone knew the frequency range for the appropriate transmitter.
But with Digital TV most TV's auto tune the multiplexes and some TV's in our house will show news, adverts and weather for England and some for Wales.

It's a pain in the bum, so I have a linux satellite receiver instead now

[TMM]

there is only one possibility...

[FennecTECH]

Maby this old tv didnt support the brain sucking channel so it tried to display the same thing as the real channel but was picking up commercials from other peoples brains

[ConKbot]

How few years back? was one TV on an analog broadcast station and the other a newer TV on the same digital broadcast that could have different commercials for whatever reason?

[Falcon69]

did you check to see if one of the TVs had a flux capacitor in it, and that TV was just running a re-run tv show?  If that was the case, you were watching a re-run of the same tv show, but that TV was broadcasting from the future, which would make sense as to why the commercials were different.

[BTO]

I'm a Telecommunications Expert
if you claim that you had 2 Analogue Television sets
in the same house
connected to the same TV Antenna
Tuned to the same Frequency
and on the Same PHYSICAL CHANNEL (not TV channel)

and after all that, you claim that you saw 2 Different commercial
Sorry... Not Possible

Even if it was some Government conspiracy........... not possible

(FYI, I'm in Australia)
but, regardless of where you are in the World
yes we have Modulation Differences and Bandwidth Differences

but.. fundamentally
if you are on a certain Frequency

let me use Examples in australia. ok

let's say (i'm in Sydney) and my Antenna is Pointing towards North Sydney (Artarmon Transmitter)
and i want to watch TV Channel 7 (digital 7)
so, that's on the Frequency of 117.500 MHz (if i'm not mistaken)

and on my spectrum Analyzer (and according to the Australian Channel Plan)
this Frequency is PHYSICAL CHANNEL 6
Physical Channel Numbers are not the same as TV Channel Numbers

Eg.
this frequency that's on
Physical Channel 6

has about 7 Shows Broadcasting at the same time (Multicasting)

now when you tune in your TV
let's just use 3 of the broadcasts on that 1 frequency as an example
let's take
DIGITAL 7
DIGITAL 7 TWO
GEM

so..
DIGITAL 7   Scans in on TV Channel   70
DIGITAL 7 TWO Scans in on TV Channel 72
GEM scans in on TV Channel 73

but. they are all on 1 Frequency


but.. that's digital

you said you had an analogue TV

so, that TV Must have an Analogue RF Tuner  (Assuming no Set Top boxes are connected to it )

so, if your one 1 Analogue Channel  (PHYSICAL CHANNEL)   or Digital.. it doesn't matter
and you scan in your 2 TV's

your 2 TV's are connected to the same Antenna
Therefore the signal that comes in on one will come in on the other

and your part of the world will have a CHANNEL PLAN FOR THE COUNTRY
Your TV's When manufactured,  WILL HAVE TO CONFORM TO THAT PLAN

so.. it's impossible for you to receive 2 different broadcasts on 2 different TVs in the same premises


Here are some possible scenario's that give logic to what your saying

- Maybe 1 TV was connected to 1 Antenna Pointing in a certain Direction
  and the 2nd TV was connected to a different Antenna pointing in another direction
  Hence your receiving 2 different broadcast signals

- Maybe you had the 2 TV's on different TV Channels , but you didn't realize it  (it happens)

- Maybe you had both TV's on the same antenna, but.. one of them was connected let's say TV Channel 2 and watching LIVE TV Channel 2
  and the other had a Video Player connected with a Tape in it, and the Video Player was tuned to run off TV Channel 2
  and then somone presses PLAY on the video and Vuola
  you think your watching 2 different broadcasts
   well, actually you are.... But they are not both live broadcasts    that could also happen

but the bottom line is

there is no way under god, Not even remotely possible
that

if you have 2 TV's
connected to the same antenna
Tuned to one Transmitter
and the TV's are on the same Physical Channel

there is no way , absolutely no way at all to view 2 Seperate programs

Even if
the broadcaster wanted to play a birthday prank to scare the shit out you on your birthday and spend millions of dollars doing it.

IT'S STILL ON THE SAME PHYSICAL FREQUENCY
I don't say this word often
but...
that scenario is Simply "IMPOSSIBLE"
Even if your entire country, Changed it's channel plan for 10mins (which would never happen)
you would still be on a New Frequency,  but both TV's would be on that same frequency

it's not possible

something happened that you didn't realize was happening

Video Tape
Different Channel
extra Antenna
Satellite TV
Cable TV

something else was being transmitted on the second TV

that's the only explanation

as to what and how
i'm not there , i don't know
if i was, i would know

but, there was a 2nd Broadcast signal of some nature
that's how it happens