KSNV (channel 3) is a television station in Las Vegas, Nevada, United States, affiliated with NBC. It is owned by Sinclair Broadcast Group alongside CW/MyNetworkTV affiliate KVCW (channel 33). The two stations share studios on Foremaster Lane in Las Vegas; KSNV's transmitter is located on Black Mountain, near Henderson.

What is now KSNV traces its origin to the launch of KLRJ-TV on channel 2 on January 23, 1955. KLRJ-TV was owned by and named for the Las Vegas Review-Journal newspaper; it was licensed to the Las Vegas suburb of Henderson and maintained studios in between the two cities. Shortly after starting KLRJ-TV, Donrey acquired Las Vegas radio station KORK; channel 2 became KORK-TV in 1962, when the FCC permitted KLRJ-TV to change its city of license to Las Vegas. The station moved from channel 2 to channel 3 on January 3, 1967, as part of a transmitter site relocation.

In 1971, the Las Vegas Valley Broadcasting Company, headed by attorney James E. Rogers, filed a competing application for channel 3. The Federal Communications Commission (FCC) called a hearing to weigh the new station proposal versus KORK-TV's renewal; the case centered on KORK-TV's use of "clipping", an illegal practice of airing local commercials over network-furnished material and advertising. The ensuing legal fight lasted throughout the 1970s: the FCC and federal appeals courts consistently denied KORK-TV a renewal of its broadcast license, but the Las Vegas Valley Broadcasting application was not finally approved until the end of the decade. On October 1, 1979, KORK-TV was replaced by KVBC, which continued with the same staff but built new studio and transmitter facilities at their present sites.

While fending off a second and unsuccessful license challenge, under Rogers's ownership, KVBC rapidly improved in the late 1980s and 1990s from a distant second-place in local news ratings to a contender and market leader. In the late 2000s and early 2010s, the station's programming strategy evolved to remove many syndicated programs and replace them with newscasts. After Rogers died in 2014, Sinclair Broadcast Group acquired KSNV's assets and conducted a switch of technical facilities that allowed it to retain all of its programming while divesting the former KSNV license, now KHSV.

Channel 2 was originally assigned by the Federal Communications Commission (FCC) to Henderson, a city south of Las Vegas, when the commission lifted its multi-year freeze on TV station assignments in 1952. The action lay unused for nearly a year until it suddenly had two applicants in the span of several weeks. The first was the Southwestern Publishing Company, publisher of the Las Vegas Review-Journal, the city's afternoon newspaper. In the first television station application filed in the state, Southwestern had applied on August 16, 1950, for channel 8 at Las Vegas. When the freeze lifted, more applicants sought channel 8, including Las Vegas Television, a sister company to local radio station KLAS. Southwestern Publishing and Las Vegas Television entered into discussions to merge their bids, which fell apart when the talks were reported on the radio. That prompted Hank Greenspun, the publisher of the morning Las Vegas Sun, to file for channel 8. There were now three applications on file for the one channel. At the time, the FCC, seeking to work through a massive backlog of applications, prioritized uncontested channels. Southwestern Publishing then filed for channel 2 in Henderson on February 26; one day later, the Boulder City Broadcasting Company, owners of radio station KRAM in Boulder City, joined them, putting every commercial channel in or near Las Vegas in contested status.

For channel 2, the logjam broke when Boulder City Broadcasting Company withdrew from channel 2 contention so that some of its stockholders could participate in the contest for channel 13. The studios and 324-foot (99 m) transmission tower and antenna were built at a site on Boulder Highway, midway between Henderson and Las Vegas; the new station boasted that its studio was the largest between the Mississippi River and Los Angeles. Southwestern Publishing also signed to affiliate channel 2 with NBC.

KLRJ-TV began telecasting on January 23, 1955, as Nevada's third television station. It was the second Nevada station owned by Donald W. Reynolds, publisher of the Review-Journal; he also started KZTV, channel 8 in Reno. Reynolds then expanded his media interests with the 1955 acquisition of KOLO radio in Reno and Las Vegas radio station KORK (1340 AM). The sale was initially approved in April but held up until July after KLAS-TV, the station built on channel 8, charged that Reynolds was offering discounted rates for advertising between the Las Vegas-area TV station and newspaper as well as for the two Nevada TV stations. In addition to NBC programming, the station broadcast some programs from ABC, which did not have a primary local affiliate until KSHO-TV signed a contract in December 1957; it also briefly affiliated with the NTA Film Network, which began in 1956.

On November 19, 1962, KLRJ-TV became KORK-TV. The move coincided with the city of license changing from Henderson to Las Vegas after a petition by the station, though it remained in its Boulder Highway studios and was required by the commission to continue serving the Henderson area.