I bought one of these for my mother over the weekend. I hooked it up to two different TV's, two different ways. Her G.E. brand 25" TV only has RF input, so I hooked it up that way. No problem with the "audio bug" that I could hear, and the remote was able to find her TV code with no problem. The picture had a lot of dot crawl, especially on the basketball game. The tuner worked very well, however. One channel, especially, was very impressive because massive multipath makes the analog channel unwatchable. Clear as a bell with the box.....no dropouts, no pixelization. Her other TV, a Magnavox 20", has A/V inputs, so we hooked it up that way. Still no audio problems (switched to A/V mode in the menu, which I guess is "stereo"). I'm sure the audio bug is more prominent if you hook up to an A/V receiver, but I really didn't hear it at all, and I was listening for it, especially on DD5.1 shows. The volume is louder in RF mode, BTW. Much less dot crawl when using the A/V inputs, but that TV probably has a comb filter. HOWEVER, the remote would NOT control this TV (this was a bummer, because the "universal" remote was one of the main reasons for choosing this unit over some others).
I'm impressed with the speed of channel changing - it's faster than my E* DVRs and most TV's with integrated tuners that I'm familiar with - I'd say about a half-second picture-to-picture. For viewing on a small 4:3 TV, I'd say the best aspect choice is the 14:9 - you see the whole picture vertically (very small bars top and bottom) and the sides are cut off some, but it's a good compromise. If you have a large 4:3 TV, "letterbox" would be fine. If you have 16:9 TV, "anamorphic" would be the best choice, using the stretch mode on your TV. Setup is very straightforward, and the channel scan only takes a couple of minutes. It found all of her stations with no problem (antenna in attic with preamp, all stations 20-30 miles away in different directions). Not a bad little box, IMO.