TV highlights: Liza Minelli on 'Smash,' Sunday talk shows

Saturday night, "Smash" (NBC at 9) officially begins the burn-off phase, as Liza Minnelli guest-stars to attend Ivy's party. Sunday talk shows: "Platts Energy Week" (WUSA at 7:30 a.m.) interviews former New Jersey governor Christine Todd Whitman and United Transportation Advisers' Brigham McCown; "This Week in Defense News" (WUSA at 8) has Rep. Duncan Hunter (R-Calif.) and former Defense Policy Board chairman Richard N. Perle; "BioCentury This Week" (WUSA at 8:30) features Aisling Capital's Denn...