tv/ movies: Born Dec 25, 1899, He starred in this movie: The Big Shot - 1942?

Questions

what cartoon show's theme warns: "watch out for that tree!"?

what cartoon, by greg daniels & mike judge, concerns a texas propane salesman & his somewhat functional family?

what character did charles bronson play in man with a camera?

what character did george burns play in 'oh, god'?

what character did mclean stevenson play on tv's m.a.s.h?