HAPPY ENDINGS - "Yesandwitch" - Penny's perpetually optimistic mom, Dana (Emmy-winner Megan Mullally), is in town for a singing gig at a boat show. Her enthusiasm inspires the gang, but when Penny finds out she's hiding some less-than-happy news, she decides it's time to give mom a reality check, on "Happy Endings," WEDNESDAY, OCTOBER 12 (9:31-10:00 p.m., ET) on the ABC Television Network. (ABC/MICHAEL DESMOND)ADAM PALLY, MEGAN MULLALLY