TBS changes starting Jan 28:
8:30AM Fresh Prince of Bel-Air
9:30AM A Different World
6:00PM The Cosby Show
7:30PM Roseanne

The rest of the lineup is the same.

The Cosby Show will have a 6 hour event on WGN on Sunday Feb 3rd from 12pm-6pm. I guess it will be a mini-marathon since March 3rd Nick at Nite will start a marathon, lol