I've got the TV tuner made for GBA by Pelican Accessories and frankly I'm not too impressed with it. For starters reception on the upper VHF band is next to impossible. I can stand on my roof and see the building for my local channel 4, point the fully-extended antenna at the dish and still can't pick up a signal! It picks up UHF well, but my Spanish is not that good and I don't like those jackals on TBN. Secondly it's a battery hog. Third, if you use it with its supplied stand and you extend the antenna (you know, because you want to actually watch TV on the thing) the thing falls over on its side every time
On the upside, since it accepts composite video as well it makes a pretty handy portable monitor. I wouldn't play GTA3 on it, but it's good for things like the TV Games 10-in-1's as well as portable famiclones.
Anyway, does anyone know of a better TV tuner for the GBA? Likewise, does anyone know if the Pelican tuner is compatible with GBA SP? Maybe backlighting would make me like this thing a little more.