The penultimate episode of Saturday Night Live’s 49th season happens to fall only a few hours before Mother’s Day, so, as has been an off-and-on tradition over the last couple of years, the show forgoes a traditional cold open so that the cast can introduce their mothers. The moms get saddled with cornball jokes about their offspring or, in a few cases, topical figures such as Tom Brady and RFK Jr, which they deliver with stilted nervousness.