What to Watch on Saturday: Two CBS sitcoms air their final episodes

Me, Myself & I (8 p.m., CBS) -- This series ends with three new back-to-back episodes. In the final installment, Midlife Alex contemplates reuniting with his ex-wife and Older Alex tries to keep Eleanor from leaving town with her fiance.

Living Biblically (9:30 p.m., CBS) -- In the series finale, Chip takes on his corporate bosses after being fired while trying to get a fired coworker rehired.

JAWS (8 p.m., Discovery) -- Before Shark Week officially starts tomorrow, watch this 1975 classic about a huge white shark that menaces a New England beach town. (Tip: If you love “JAWS,” check out the “Inside JAWS” podcast from Wondery.)

Hallmark Christmas Movies -- The Hallmark Channel and the Hallmark Movies & Mysteries Channel are marathoning Christmas movies in July. Here’s more info, including a schedule.