Sumo TV was a free-to-air television channel owned by Cellcast Group.

[4] Every time a clip was broadcast, the originator of the content received a percentage of the revenues generated.

[5] The channel was criticised by Ofcom for putting too much responsibility for complying with the broadcasting code on the creators of user-generated clips rather than performing sufficient checks themselves.

[8] On 27 March 2008, it was announced that Cellcast had sold Sumo TV and Sumo TV +1's EPG slots to Discovery for £1.4m as well as receiving a slot further down the Entertainment category of the EPG.

Sumo TV returned to the Entertainment category on 25 November 2008 with programming from Psychic Television as well as archive footage.