A bunch of shows beginning and ending this weekend.  Click each show for more info.  All times are EST:

Tonight's Premiere:

CBS: Flashpoint at 8p

Tonight's Finales:

Investigation Discovery: Main Street Mysteries at 830p

FOX: Fringe at 9p

Saturday's Premieres:

HGTV: Sarah's Summer House at 8p

Logo: Pretty Hurts at 8p

Animal Planet: My Cat From Hell at 9p

BBC America: The Graham Norton Show at 10p

Sunday's Premieres:

MTV2: Funk Full Flex Throttle at 130p

Discovery Channel: Wild Animal Repo at 8p

Food Network: Best In Smoke at 10p

OWN: Why Not? with Shania Twain at 11p

Sunday's Finales:

CBS: The Amazing Race at 8p; CSI: Miami at 10p

Style Network: Ruby at 8p

Food Network: Last Cake Standing at 9p

HISTORY: Ax Men at 9p

ABC: Brothers & Sisters at 1001p

OWN: The Judds at 10p