Happy 80th birthday to Sybil Jason, who get a four-film salute tonight on TCM. Sybil who? Ms. Jason was Warner Bros.’ South African-born answer to Shirley Temple, as is apparent from tonight’s opener, “Little Big Shot” (1935). Directed by the studio’s top director, Michael Curtiz, this is a fairly shameless, uh, homage to Temple’s “Little Miss Marker” with an excellent cast that includes Robert Armstrong, Glenda Farrell and Edward Everett Horton as Runyonesque characters. “I Found Stella Parish” finds her as the daughter of Kay Francis, an actress with a guilty secret. By 1936 and “The Captain’s Kid,” Sybil had been demoted to Bryan Foy’s B-unit and director Nick Grinde, who guided her through “The Captain’s Kid,” a ripoff of Shirley’s “Captain January” with that flick’s male lead, WB stalwart Guy Kibbee and Guy’s frequent sparring partner Aline McMahon, plus the inimtable dowager May Robson. Sybil rated the services of director William Dieterle for “The Great O’Malley” (1937) in which she plays the crippled daughter of Humphrey Bogart, who is tormented by the Javert-like title character, a cop played by Pat O’Brien. Ann Sheridan is on hand, too.  Ironically, Sybil’s Hollywood career ended with supporting roles Temple’s last two major vehicles, “The Little Princess” and the very weird “The Blue Bird.” Legend has it that Sybil’s death scene in the former was so moving that it was cut at the insistence of Shirley’s mother.