iLuv Japan shows the IM-1ST002U/W USB TV (aka Time TV) for Macintosh. The TV Tuner connects your Mac via USB 2.0 and you can use Apple Remote to change the channel. It supports the Electronic Programming Guide (EPG) which allows you to program your Mac to record your favorite program.
The iLuv IM-1ST002U/W USB TV Tuner measures 23×94.2×9.8mm and weights 22 grams, and it works with Mac OS X 10.4 or above. It will hit the store at late Feb and priced at 14,800 Yen ($ 122).