Wikipedia
KTPN-LD, virtual and UHF digital channel 48, is a MyNetworkTV- affiliated television station located in Tyler, Texas, United States. The station is owned by White Knight Broadcasting, and is a sister station to Fox affiliate KFXK-TV (channel 51); the Nexstar Broadcasting Group, which owns NBC affiliate KETK-TV (channel 56), operates KFXK and KTPN-LD under a local marketing agreement. All three stations share studio facilities located on Richmond Road (near Loop 323) in Tyler; KTPN-LD maintains transmitter facilities located west of Texas Loop 323 in northeast Tyler.
Syndicated programs broadcast by KTPN-LD include Jerry Springer, 30 Rock, The People's Court, The 700 Club, Everybody Loves Raymond, Family Feud and Friends. On cable, the station is available on Suddenlink Communications channel 9 and Longview Cable Television channel 4.
The station's signal is relayed on KLPN-LD (channel 47) in Longview, which provides KTPN's programming to the central and eastern portions of the market; that station maintains transmitter facilities near East Mountain. Even though KTPN-LD and KLPN-LD operate digital signals of their own, the low-powered broadcasting radius of both stations do not reach the entire Tyler-Longview market. Therefore, the station can also be seen through a standard definition simulcast on KFXK's second digital subchannel in order to reach the entire market. This signal can be seen on UHF channel 31 (or virtual channel 51.2 via PSIP) from a transmitter in unincorporated northwestern Cherokee County.