WQTV originally broadcast from an antenna (pictured) atop the Prudential Tower. Both stations were sold in 1999 to become outlets of the Pax network, which changed its name to i in 2005 before becoming known as Ion in 2007. Boston University also bought the Concord station, which had been silent since it failed as CBS affiliate WNHT in 1989, and turned it into a satellite of WABU in 1995. After $325 million in losses, this service shut down in 1992, and the Monitor sold WQTV to Boston University, which operated it for six years as commercial independent WABU.

After being sold to The Christian Science Monitor in 1986, WQTV became the nucleus of a major production operation, which in 1991 spawned a cable television channel, the Monitor Channel. WBPX-TV began broadcasting as WQTV in 1979 and originally broadcast subscription television programming to paying customers, which ended in 1983, with the station operating as a full-time commercial independent station until succumbing to financial troubles and paring back its programming. WBPX-TV's programming is duplicated on WPXG-TV (channel 21) in Concord, New Hampshire, which shares its channel with Lowell, Massachusetts–licensed Daystar station WYDN (channel 48) and broadcasts from Fort Mountain near Epsom, New Hampshire. WBPX-TV and WDPX-TV are broadcast from a tower shared with WUNI and WWJE-DT on Parmenter Road in Hudson, Massachusetts. Scripps Company, which also owns Woburn-licensed Grit station WDPX-TV (channel 58) the two channels share the same TV spectrum. It is owned by the Ion Media subsidiary of the E. WBPX-TV (channel 68) is a television station in Boston, Massachusetts, United States, airing programming from the Ion Television network.

Pronlems with channel 21