1) “American Masters: Robert Shaw,” 9 p.m., PBS (check local listings). “My entire life has been a make-up lesson,” Shaw said. He was a preacher’s kid from a town of 3,000, with no formal music education. But Fred Waring saw him conduct in college and hired him; at 22, Shaw did 500 shows a year. Some people scoffed … until Arturo Toscanini called him “maestro” and George Szell hired him for the Cleveland Orchestra. This hour views his flaws (alcohol, infidelity) and his immense talent.
2) “Agents of SHIELD,” 8 p.m., ABC. Life has been complicated for Leo Fitz and Jemma Simmons. They met at the Academy, then faced constant obstacles. After they fought through space, time and alternate realities, ABC says, their reunion can now only be stopped by their own demons.
3) “Whistleblower,” 8 p.m., CBS. Shortly after taking a sales job with a medical-supply company in 2011, Mark Seransie suspected a scam. Working with a fraud investigator, he accused doctors of steering patients toward spinal-fusion surgery, sometimes unnecessary and often overpriced.
4) “The Big Stage,” 9 and 9:30 p.m., CW. First is a new episode that includes Blake Lewis, the singer and beatboxer who finished second to Jordin Sparks on “American Idol” in 2007. Then a rerun of the second episode has some so-so moments, but ends with a terrific bit by ventriloquist Terry Fator.
5) “Irma La Douce” (1963), 8 p.m. ET, Turner Classic Movies. Already a hit musical in Paris, London and on Broadway, “Irma” was filmed by Billy Wilder … who dumped all the songs. It was an odd decision, leaving the story of a prostitute, a timid chap and his brash alter ego; it was salvaged by the work of Shirley MacLaine and Jack Lemmon. Two more Paris-set Wilder films, both with Audrey Hepburn, follow — “Sabrina” (1954) at 10:30 p.m. ET, “Love in the Afternoon” (1957) at 12:30 a.m.