According to ABC.com, a blooper special hosted by Dick Clark on Saturday, November 2nd, at 8/7c on ABC will feature, among others, a special guest appearance by Jamie Farr (Corporal Maxwell Q. Klinger). From the ABC Specials page:
Some of Hollywood’s biggest stars are seen in one of television’s longest-running series of specials […] featuring special guest appearances by Jamie Farr (M.A.S.H.) […] Other celebrities who will be seen include Alan Alda, Gary Burghoff, Mike Farrell, Harry Morgan, Loretta Switt and Danny Bonaduce.
Looks like there will be some scenes from M*A*S*H. Time subject to change without notice.