This new “Britcom” has two key ingredients that could make it must-see Sunday-night viewing: acting royalty Ian McKellen and Derek Jacobi. They play longtime partners living in central London, who in tonight’s premiere hold a wake and cope with a new neighbor. This should be a hoot. 10:30 p.m. Sunday, June 29, on KCTS (seattletimes.com/tvlistings).

Doug Knoop, Seattle Times staff

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dknoop@seattletimes.com or on Twitter @dougknoop

Also on Sunday

“MLB Baseball,” 1 p.m. (ROOT): Cleveland Indians at Seattle Mariners (Live).

“Xtreme Waterparks: Building the World’s Tallest,” 8 p.m. (Travel): The making of the world’s tallest water slide at 168 feet and 7 inches.

“The BET Awards 2014,” 8 p.m. (BET): Featuring Pharrell Williams, Nicki Minaj, Kevin Hart, Kerry Washington, Lil Wayne, Jennifer Hudson, John Legend, Trey Songz, Jhene Aiko, August Alsina and more.

“Rising Star,” 9 p.m. (ABC): Contestants perform.

“Unforgettable,” 10 p.m. (CBS): Carrie and Al assist the Secret Service with a murder investigation that has ties a counterfeiting ring run by an assassin.

“Devious Maids,” 10:01 p.m. (Lifetime): Marisol confronts Opal about Nicholas’ accident; Zoila and Pablo work together to help Valentina; Rosie continues to investigate Reggie; Spence’s drinking begins to have an impact on his job; Adrian learns the truth about Tony.

The New York Times