Longest running TV variety show. Share. The longest running TV variety show is Sabado Gigante (Univision Television Network, USA) hosted by Mario Kreutzberger aka 'Don Francisco' (Chile) running for 53 years and 42 days, from 8 August 1962 to 19 September 2015. On 19 September 2015 the last program of Sabado Gigante was broadcasted.