Comcast Holdings Corporation manages and operates broadband cable networks in the United States The company over its cable networks primarily offers various services including video Internet and phone Its video services include cable networks payperview programming digital cable videoondemand highdefinition television and digital video recorder services The companys Internet services consist of multiple email addresses online storage and various valueadded features Comcast Holdings phone services comprise traditional circuitswitched local phone service an array of associated calling features and thirdparty longdistance services The company also provides installation services and engages in thirdparty electronic retailing Internet connectivity and networked business applications 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 Corporation operates as a subsidiary of Comcast Corporation