By Jennifer Armstrong
Updated May 19, 2006 at 04:00 AM EDT

AOL’s Internet TV site In2TV provides a serious time suck (in a good way), with free streaming video of classic TV from Eight Is Enough to Welcome Back, Kotter to La Femme Nikita. But before we gush too much, a few caveats: It’s hardly glitch-free; there are commercials embedded; and it requires a PC. Attempts to get all 21st century with interactive touches yield mixed results — the Starplay channel featuring before-they-were-famous guest spots (see sidebar) is addictive, but the Betcha Didn’t Know trivia quiz is more trouble than it’s worth. Still, they had us at Perfect Strangers.