TV picks for Sept. 26-28: 'Sweeney Todd,' 'SNL,' 'Family Guy,' Lisa Ling

She can write, act and charm. But can Oscar winner Emma Thompson carry a tune? Find out during a production of Stephen Sondheim's "Sweeney Todd: The Demon Barber of Fleet Street." It's being presented with the New York Philharmonic Orchestra as part of "Live From Lincoln Center." Meat pies optional. 8 p.m. Friday, TPT, Ch. 2

Minnesota-born Chris Pratt kicks off the 40th season of "Saturday Night Live" with musical guest Ariana Grande. The premiere gives us our first chance to evaluate Michael Che, who takes over "Weekend Update" duties so Cecily Strong can concentrate more on sketch comedy. 10:29 p.m. Saturday, KARE, Ch. 11

Peter finally meets Homer in the season premiere of "Family Guy." This isn't just a cameo. The Simpsons family will be featured throughout the one-hour episode as Stewie comes to idolize Bart, and Lisa tries to inspire Meg. As for the two ego-driven pops, expect an epic battle over — what else? — the best brand of beer. 8 p.m. Sunday, KMSP, Ch. 9

CNN travels deeper into documentary land with the launch of "This Is Life With Lisa Ling," a one-hour series that promises to take viewers into the far corners of America. Among the early topics: wealthy older men matching up with young, attractive women, and the high number of prescription-drug overdoses in Utah. 9 p.m. Sunday, CNN

Neal Justin