WXBU (channel 15) is a television station licensed to Lancaster, Pennsylvania, United States, serving the Susquehanna Valley region as an affiliate of the digital multicast network TBD. The station is owned by Howard Stirk Holdings, a partner company of the Sinclair Broadcast Group. WXBU's advertising sales office is located on Butler Road in West Cornwall Township (with a Lebanon postal address); the station shares transmitter facilities with Sinclair-owned, Harrisburg-licensed CBS affiliate WHP-TV (channel 21) on a ridge north of Linglestown Road in Middle Paxton Township.