TV highlights: Kaley Cuoco guest stars on 'Project Runway'

After last week's evicted-houseguest-coming-back-in-the-house excitement, the pressure is on again as another competitor is sent packing on "Big Brother" (CBS at 9 p.m.). The name of the game is "shoes" on Thursday's "Project Runway" (Lifetime at 9), as the designers are tasked to create outfits inspired by footwear; later, the show promises a "shocking" elimination. Guest judges include Kaley Cuoco of "The Big Bang Theory."