KTBU (channel 55) is a television station licensed to Conroe, Texas, United States, broadcasting the digital multicast network Quest to the Houston area. It is owned and operated by Tegna Inc. alongside CBS affiliate KHOU (channel 11). Both stations share studios on Westheimer Road near Uptown Houston, while KTBU's transmitter is located near Missouri City, in unincorporated northeastern Fort Bend County. Previously, KTBU maintained separate facilities on Old Katy Road in the northwest side of Houston, while the KHOU studios only housed KTBU's master control and some internal operations.