The teams are back for the third week of HGTV's “Battle on the Beach,” and this time, it's all about the living rooms. In the episode “Living Room Showdown,” the three teams of up-and-coming renovators—led by superstars Ty Pennington (“Ty Breaker“), Alison Victoria (“Windy City Rehab“), and Taniya Nayak (“Build It Forward”)—turn their plain living rooms into cozy, elegant spots for vacationers to gather.