Licensed to Claremont, New Hampshire, United States, the station serves the Dartmouth–Lake Sunapee Region.

It was built by the original owners of WKBR in Manchester as part of a chain of "Twin State Network" stations, which also included WTSL in Hanover, WTSA in Brattleboro, and WTSN in Dover.

WTSV, along with 29 other stations in northern New England formerly owned by Nassau Broadcasting Partners, was purchased at bankruptcy auction by Carlisle Capital Corporation, a company controlled by Bill Binnie (owner of WBIN-TV in Derry), on May 22, 2012.

[5] The Vertical Capital Partners stations were transferred to Great Eastern Radio on January 1, 2013.

[10] In September 2020, WTSV relaunched the sports format as an affiliate of the WEEI Sports Radio Network, based out of WEEI-FM in Boston; Great Eastern Radio already carried WEEI programming on WEEY in the adjacent Keene market.