RUPAUL’S DRAG RACE 8 p.m. on VH1. “Friday, February 28th, 13 new candidates enter the race.” No, that sentence isn’t pulled from the nightmares of the Democratic presidential candidates bracing themselves for Super Tuesday; it’s from a trailer for the latest season of RuPaul Charles’s flagship drag show, which will kick off its search for “America’s first drag-queen president.” That search will be aided by a collection of celebrity guests peppered throughout the season, including Nicki Minaj, Whoopi Goldberg, Leslie Jones, Chaka Khan and U.S. Representative Alexandria Ocasio-Cortez.

DATELINE 9 p.m. on NBC. In 2013, Karl Holger Karlsen pleaded guilty to murdering his son in order to collect a life insurance policy. Earlier this month, Karlsen was convicted of killing his wife years earlier for the same reason. Those cases are the focus of this week’s edition of NBC’s “Dateline” series, which brings together interviews with those close to the events — including Karlsen himself.