WE tv has renewed its popular docu-series Tamar & Vince for a second season and Joan & Melissa: Joan Knows Best? for a fourth season. The 10-episode Season 2 of Tamar & Vince, which will feature the recent birth of the couple’s baby boy, will premiere September 5; while the eight-episode Season 4 of Joan & Melissa, which will chronicle Joan Rivers’ recent 80th birthday celebrations, will kick off in early 2014.