Broadway seems to be taking television by storm these days.

The cast of The Lion King is appearing on David Letterman tonight (Nov. 20), while the League of American Theatres & Producers just announced that eight Broadway shows will perform at the National Basketball Association All-Star Game halftime. And let's not forget the host of musicals to be represented in the Macy's Thanksgiving Day Parade.

David Mamet just appeared on both Charlie Rose and "Politically Incorrect," while Rosie O'Donnell, perhaps Broadway's greatest TV champion, will get a visit from Barbra Streisand, Nov. 21, and from The Capeman's Paul Simon, Nov. 25.

Even dramatic series are getting into the act -- and not just Mandy Patinkin's recurring appearances on Chicago Hope either. Tonight's "Seinfeld" (Nov. 20) has a plot that starts at the end and moves back in time to the beginning. Seinfeld has said in interviews the structure was borrowed from Harold Pinter's drama, Betrayal.

Now comes word that the CBS Sunday night series, "Touched By An Angel," will have a Broadway storyline (Nov. 23) and three stars to go with it: Carol Burnett, Rita Moreno and Carol Channing. Broadway window cards will also be on view in the broadcast, which stars former Off-Broadway actress Roma Downey. -- By David Lefkowitz