8 pm The Big Bang Theory (CBS) | Sheldon geeks out when Stephen Hawking, the famed theoretical physicist and cosmologist, stops by the University.
8 pm Community (NBC) | It’s war on the Greendale campus — forts formed of blankets versus pillows — and the study group picks sides. Jeff tries to negotiate a truce, but with neither Abed or Troy budging on their principles (or real estate), the future looks grim.
8:30 pm Rules of Engagement (CBS) | When Audrey thinks her maid needs a financial boost to fix her limp, she asks the neighbors to chip in… only to find out she misunderstood what the operation’s really for.
9 pm Grey’s Anatomy (ABC) | A lion runs loose in Seattle, Alex cuts ties with “needy” Morgan’s case, Callie grills Arizona on her past lovers (get scoop!) and Meredith helps Cristina as the tension with Owen hits a boiling point.
9 pm Person of Interest (CBS) | When The Machine spits out five numbers, each naming the don of each of a New York crime family (and each played by a Sopranos alum), Reese and Finch suspect Elias is planning to eliminate his competition.
10 pm Scandal (ABC) | Series premiere: Shonda Rhimes’ latest venture stars Kerry Washington as an elite crisis management consultant who lords over a team of lawyers, investigators and snoops that helps the D.C. elite dodge publicity bullets. Check out our review, read a preview.
10 pm Awake (NBC) | In an effort to calm a patient (The Chicago Code‘s Billy Lush) who has threatened to blow up a mental hospital, Britten is compromised, and the effects follow him into his other reality. (Get some scoop on one of Jason Isaacs’ favorite episodes, plus the show’s finale date!)
10 pm The Mentalist (CBS) | Jane and the CBI try to determine who would have reason to kill a popular school teacher; Cho and Summer hide their relationship from Lisbon; Rigsby gets a special delivery. Emily Bergl (Men in Trees) and David DeLuise (Wizards of Waverly Place) guest-star.
Which of the above is must-see for you? Also, hit Comments to offer your own tune-in suggestions.Follow @AlyseWhitney