As other cowboy stars made the transition to television, Allen tried too, cast as Dr. Bill Baxter for a half-hour weekly series called Frontier Doctor.

Frontier Doctor is an American Western television series starring Rex Allen that aired in syndication from September 26, 1958, until June 20, 1959.

Frontier Doctor in "Strange Cargo" (1959)

Frontier Doctor as Pa Helbrog in "The Homesteaders" (1959)

Frontier Doctor (1979)

Frontier Doctor (1 episode, 1958)

Frontier Doctor (1958)

Frontier Doctor as Tom Lynch in "Double Boomerang" (Syndicated, 1958)

Frontier Doctor (1 episode, 1959)

In 1958, he published an autobiographical work titled Frontier Doctor.