Question: What digital television channel that focuses on country music is owned by the company that operates the Retro Television Network?

Context paragraphs:
WRCF-CD: WRCF-CD is a Class A low-powered television station in Winter Park, Florida which serves the Orlando area and has the Retro Television Network as its main affiliation.  WRCF's fourth subchannel is affiliated with The Country Network, with its second and third subchannels leased by Orange County to carry their PEG channels, Orange TV (county government meetings and services programming) and Vision TV (local arts and lifestyle programming).  The station is owned by Univision Communications, and broadcasts on UHF channel 35 (WOFL's channel in the analog age), but showing as its former analog channel 29 via PSIP.

Doctor Television Channel: The Doctor Television Channel, known as Doctor TV (stylized as DrTV), is a healthy lifestyle digital television network in the United States.  Doctor TV is primarily affiliated with the digital sub-channels (main channel or second) of television stations owned and/or operated by DTV America Corporation, as well as a handful of other station groups, with additional stations adding the channel in the near future.  The network’s programming format is somewhat similar to those of ION Life and the Live Well Network.

Heartland (TV network): Heartland is an American country music-oriented digital broadcast television network that is owned by Luken Communications and broadcast out of Chattanooga, TN.  Launched on April 16, 2012, the network began in 2012 as a revival of The Nashville Network (TNN) that existed as a basic cable and satellite television network from March 7, 1983 to September 24, 2000.

Retro Television Network: The Retro Television Network (branded on-air as Retro and alternately below as Retro for brevity) is an American broadcast television network that is owned by Luken Communications.  The network mainly airs classic television sitcoms and drama series from the 1950s through the 1980s, although it also includes more recent programs from the 1990s and 2000s.  Through its ownership by Luken, Retro is a sister network to several broadcast network properties that are wholly or jointly owned by the company, including the family-oriented Family Channel and country music-oriented network Heartland.

WYCX-CD: WYCX-CD is the Retro Television Network affiliate for southern Vermont, licensed in Manchester and Londonderry, as well as South Charlestown, New Hampshire.  The station's digital transmissions are on VHF channel 2; it is also carried on area cable systems, and formerly branded as "TV 12 and 20" in recognition of this.  The station currently brands as "YCN", an initialism for "Yankee Communications Network."  WYCX-CD is owned by Cross Hill Communications.  Programming is also seen on WYCU-LD (channel 26) in Charlestown, New Hampshire and Rockingham, Vermont.

KRFT-LD: KRFT-LD is a low-power digital television station licensed by the FCC to Springfield, MO. broadcasting in digital Over The Air on UHF channel 21, (primary Virtual Channel 8).  An affiliate of Retro Television Network (www.myretrotv.com/), on Primary Virtual Channel 8.1, an affiliate of The Heartland Network (www.watchheartlandtv.com/), on Virtual Channel 8.2, an affiliate of Across Platforms/LifehacksDRTV on Virtual Channel 8.3, and an affiliate of QVC Shopping Network on Virtual Channel 8.5.  The station is owned by Craft Broadcasting, LLC, a Florida Corporation.  Presently it is operating 24/7 OTA (over the air) in Nielsen DMA #75.  The coverage area includes a population of over 428,000 in the metropolitan Springfield, MO area.

KZUP-CD: KZUP-CD is the local low-powered, Class-A Independent station in Baton Rouge, Louisiana, previously affiliated with the Retro Television Network.  It transmits its digital signal on UHF channel 20 from a transmitter in Addis, Louisiana, while it operates from studios shared with WVLA-TV, WGMB-TV and WBRL-CD at Perkins Rowe Town Center in Baton Rouge.  It is owned by Nexstar Media Group, and is sister station to the area's Fox affiliate, WGMB-TV and The CW affiliate WBRL-CD.  The station is seen via cable on Cox Communications.

WAAO-LD: WAAO-LD is a low-powered television station that is licensed too Andalusia, Alabama.  Owned by Three Notch Communications, who also operates country music-formatted radio station WAAO-FM, the TV station broadcasts a digital signal on UHF channel 40.  The station is an affiliate of the Retro Television Network.

WPVN-CD: WPVN-CD is a Class A Digital television station that is licensed to Aurora, Illinois and serves the Chicago area, and is owned by ethnic broadcaster Polnet Communications & is the Chicago affiliate for Tuff TV.  This station became a Retro Television Network affiliate for the Chicago television market on November 13, 2010 (ending June 30, 2013), but the main purpose of the station is to relocate much of the ethnic programming removed by Weigel Broadcasting in December 2010 when they decided to end carrying it over WCIU-DT6.

List of Retro Television Network affiliates: The Retro Television Network is an American television network.  This is a listing of current Retro Television Network's affiliates, arranged by U.S. state.  In most markets, Retro TV operates on a digital subchannel of the main station listed.  In some markets, Retro is a secondary affiliation, and elsewhere, it operates on an LPTV or Class A station.

Supporting paragraphs: Retro Television Network Heartland (TV network)
Answer: Heartland