A1) Pink-eye is a highly contagious conjunctivitus.
A2) Salisbury steak is ground beef mixed with egg, milk, bread crumbs and seasonings, shaped into oval-shaped patties, floating in gravy. The curious thing about S. s. is that it only seems to exist as a frozen food; I know of no one who makes it from scratch. (Does anyone out there?) This makes it a popular item at the school cafeteria.
A3) Kathy Lee Gifford is, in fact, a real celebrity. She is the co-host of Live With Regis and Kathy Lee, a morning talk show, and she's also a spokesperson for Carnival Cruises. She is loathed by many for shamelessly doting on her son Cody on national television, and for just being an all-around goody-goody. In "Weight Gain 4000" when Chef says, "It's at least three times bigger than Frank Gifford's anyway" he is referring to her husband, Frank Gifford, co-host of Monday Night Football until the end of last season. In the flashback to when she was a little girl she was called by her maiden name, Epstein.