Chiwetel Ejiofor (as Louis Lester) with Wunmi Mosaku (as Carla) and band members In Stephen Poliakoff’s “Dancing on the Edge.” (Courtesy of Starz)

Are you sick of frothy melodramas yet? Never! The Lifetime network feeds your addiction with “Missing at 17” (Lifetime at 8 p.m. Saturday), a film about a young girl who leaves home to find her birth mother after she discovers she was adopted.

Set in 1930s London, “Dancing on the Edge” (Starz at 10) is inspired by true accounts of the phenomenal Duke Ellington Band mingling with the future Duke of Windsor in Europe. The miniseries illustrates the journey of a group of black jazz musicians — the Louis Lester Band — as they steadily rise to stardom.

Tonight’s “SNL” (NBC at 11:30) is a repeat with Tina Fey as host and Arcade Fire as the musical guest.

Sunday talk shows: “Platts Energy Week” (WUSA at 7:30 a.m.) interviews Carlyle Group’s Robert Mancini and American Fuel and Petrochemical Manufacturers’ Charles Drevna; “This Week in Defense News” (WUSA at 8) has TechAmerica’s Trey Hodgkins and Stimson Center’s Barry Blechman; “BioCentury This Week” (WUSA at 8:30) features Federation of American Societies for Experimental Biology’s Howard H. Garrison and American Society of Cell Biologists’ Kevin Wilson; “Fox News Sunday” (Fox at 9) hosts Sens. Marco Rubio (R-Fla.), Richard J. Durbin (D-Ill.) and Roy Blunt (R-Mo.).

“White House Chronicle” (WETA at 9) has journalist Hendrick Smith and SmartPower’s Brian Keane; “State of the Union” (CNN at 9) features Sens. John McCain (R-Ariz.) and Ted Cruz (R-Tex.); “Government Matters” (WJLA at 9:30) hosts Politico Pro’s Tony Romm and the Association for Unmanned Vehicle Systems International’s Ben Gielow; “Newsmakers” (C-SPAN at 10) talks to Rep. Chris Van Hollen (D-Md.); “This Is America & the World” (WETA at 10 and WHUT at 6 p.m.) hosts Ambassador Nirupama Rao; “Meet the Press” (NBC at 10:30) has Treasury Secretary Jack Lew; “Face the Nation” (CBS at 10:30) talks to Sens. Mitch McConnell (R-Ky.), Mark R. Warner (D-Va.) and Lindsey O. Graham (R-S.C.); “Bloomberg Government’s Capitol Gains” (Bloomberg TV at 11:30) has McCain.

Sunday night, Carrie meets a new client and learns of the power the now-crippled CIA still employs on “Homeland” (Showtime at 9). Dana and Saul are on the move, with Dana running away from home and Saul following a money trail to an unexpected location.

Later on the network, a new sex study gets a new participant in the form of Virginia’s ex-husband on “Masters of Sex” (Showtime at 10). Meanwhile, William and Libby host a dinner party that brings Virginia and Ethan back together.

Rachel Lubitz