TBS (Tues., March 12, 8:05 p.m. ET)
This is a disappointingly routine (and, at two hours, overlong) run-through of the history of movie-star dogs, cats, horses, mules and pigs. There’s too much Benji, the canine hairbrush, and not enough Babe, the Oscar pork. The trivia, however, is good. Rin Tin Tin’s trainer discovered him in the German trenches during World War I. And John Wayne once won Lassie in a poker game with the collie’s owner, Rudd Weatherwax. But Lassie was given back the following day.