This week on Just Jack & Will: Wait. Sorry, that should say “waiter,” this week on Just Jack & Will: Sean & Eric talk waiters and adult videos (not the Merchant-Ivory kind) as they review “To Serve And Disinfect.” They talk about ballet service, smashed noses, and that feeling you get when food or drink on TV looks really, really good. Then, production staple from the start to the end of Will & Grace, Steve “Ball” Sandoval joins them to explain exactly what a production coordinator does, how he got his nickname, and also helps get to the bottom of a Will & Grace mystery: was Karen’s video actually filmed or not? Letting me keep this tux means never having to say you’re sorry.