 WDTV's only competition came from UHF stations and distant stations from Johnstown, Pennsylvania; Youngstown, Ohio; and Wheeling, West Virginia.No other commercial VHF station signed on in Pittsburgh until 1957, giving WDTV a de facto monopoly on television in the area.Since WDTV carried secondary affiliations with the other three networks, DuMont used this as a bargaining chip to get its programs cleared in other large markets.