Wikipedia
WHP-TV, virtual and UHF digital channel 21, is a CBS- affiliated television station serving Lancaster, York, Lebanon and its city of license Harrisburg, Pennsylvania, United States. The station is owned by the Sinclair Broadcast Group. It's a sister station to WXBU under a local marketing agreement. The stations share studio facilities located on North 6th Street in the Uptown section of Harrisburg, with the building bisected by the city line for Harrisburg and Susquehanna Township; the studios of rival station WHTM-TV are located directly across North 6th Street. WHP's transmitter is located on a ridge north of Linglestown Road in Susquehanna Township (it is co-located with WITF-TV and is distinguishable as the unlit red and white tower; WITF's tower is unpainted and flashes strobes at all times).
On cable television, the station is available on Comcast channel 2 and in high definition on digital channel 802. Despite the presence of WHP-TV, CBS-owned KYW-TV in Philadelphia serves as an alternate CBS affiliate for South Central Pennsylvania, as it is carried on Comcast systems in the market.