Thursday, Feb. 3
8 p.m. on ABC
"'Happy Days' 30th Anniversary Reunion"
Actually, they're a year late; "Happy Days" debuted on Jan. 15, 1974, during of one of those periodic phases when people get excited about the 1950s. Together again for this new special are Scott Baio, Tom Bosley, Ron Howard, Erin Moran, Don Most, Marion Ross and Anson Williams.
9 p.m. on the Discovery Channel
"Bin Laden: Dead or Alive"
So, why can't they catch him? This program looks at the problems faced by searchers in remote and mountainous regions of Afghanistan and Pakistan, with comments from former CIA counterterrorist czar Cofer Black and others who have been involved in the hunt.