Bizarre TV Behavior

[themadhippy]

My dad had a better remote, he commanded loud and clear, "Paul, go change it to Channel 4."

funny enough my dad had a similar model that could also adjust the volume or hit the telly on the left hand side  to sort the picture.

[RJSV]

   The 'click' you hear, when pushing button on ultrasonic controls is a tiny hammer dealy, that hits a metal bar, that is mounted in compliant attachments, and that will emit a decent amount of ultrasonic audio power.
Metal bar resonates somewhere in the band the audio microphone receiver circuit accepts...
(I might guess, 16 khz audio ?)