Broadcast: Discovery CEO David Zaslav has acknowledged he would run the rule over Channel 4 and ITV, but indicated that there are barriers to both deals. Zaslav said that UK is Discovery’s most important market outside of the US, and that he is open to the idea of a big acquisition in the free-to-air space. A large US media company such as Discovery, NBC or Viacom has been touted as the most likely potential purchaser of the terrestrial broadcaster in the event of privatization.