VALENTINE'S DAY AT "30 ROCK" NEVER LOOKED SO GOOD. JON HAMM AND SALMA HAYEK GUEST STAR — Not realizing it's going to be the ultimate lovers holiday, Liz insists her and Drew have their first official date on Valentine's Day; while Jack prepares himself for an unconventional Valentine's Day spent at church with girlfriend Elisa. Tracy tries to help Kenneth win the affections of a new staffer.