Be sure to tune into the Travel Channel on April 7th at 9pm, and you'll see Peter Brady (Christopher Knight) takes viewers on a nostalgic drive to see the houses used for The Brady Bunch, The Nelsons, Beverly Hills 90210, and the Melrose Place apartment building.
Full-info on this wonderful special:
http://www.sitcomsonline.com/boards/showthread.php?s=&threadid=32439