I started listening to the Amp Hour three weeks ago and as I wasn't sure I'd find it interesting, I listened to the shows backwards so I could catch recent content instead of rough early shows from years ago.
Now that I've gotten to the last (first actually) ten episodes, I can say without a doubt the show is the best podcast I've ever downloaded, and I'm not looking forward to life at only one episode a week! It's also getting much better -- the music, banter and content deteriorates noticeably going backwards.
My only gripe (I imagine they're expected around here) is that I can't donate with Dwolla (Dwolla.com). It allows one to send up to $10 for free and charges just $0.25 above that. It doesn't require some crazy signup or anything to receive money.
Full disclosure: I do not in any way profit from Dwolla, nor do I know anybody who does. I just wish I could donate money without giving money to Paypal or credit card companies!
Anyway, thanks for the great show, keep up the good work!