Crestview Partners announced it will acquire a significant stake in WOW!, a high-speed internet, cable TV and phone services provider. Crestview will purchase units held by Avista Capital Partners and other unitholders, and make a $125 million primary investment in newly issued units. The transactions are expected to close on or before December 31. WOW! offers services to residential and commercial customers in U.S. Midwest and Southeast communities.