Ivan invites Shirley to dinner, saying he'll take to Melville's - the restaurant famously upstairs from Cheers, also set in Boston.
This episode racked up a total of no fewer than four Star Trek series regulars. In addition to BL regulars William Shatner (Kirk in Star Trek (1966) and Rene Auberjonois (Odo in Star Trek: Deep Space Nine (1993), also featured were Armin Shimerman (Quark in Deep Space 9) and Ethan Phillips, (Neelix in Star Trek: Voyager (1995)
Craig Bierko (Jeffrey Coho) & Constance Zimmer (Claire Simms) also worked together on UnREAL (2015) as Chet Wilton & Quinn King respectively.