The effect of a dam and its reservoir on flow regimes depends on both the storage capacity of the reservoir relative to the volume of river flow and the way the dam is operated. The most common attribute of flow regulation is a decrease in the magnitude of flood peaks and an increase in low flows.
Comcast Holdings Corp. was formerly known as Comcast Corporation and changed its name to Comcast Holdings Corp. in November, 2002. The company was incorporated in 1969 and is based in Philadelphia, Pennsylvania. Comcast Holdings Corp. operates as a subsidiary of Comcast Corporation.
Comcast also owns NBCUniversal, which includes the NBC TV network, movie maker Universal Studios, and the Universal theme parks. In 2015 Comcast withdrew its $45 billion bid for Time Warner Cable as regulators voiced opposition. Film fact: Three of the company's 2015 movies grossed more than $1 billion each.