Never knew how much I missed ya, Sister, Sister. If you haven't heard yet, '90s nostalgia is in full swing — most recently evidenced by the upcoming Sister, Sister reboot. Way back in 2015, Meredith Vieira asked Sister, Sister star, Tia Mowry, about the possibility of a revival. "It’s just all about timing … so we’ll see. The fans, they really want it, so we’ll give it to them, probably," she said at the time.