Sony Pictures Television ‘s president has made an impassioned plea to the new leaders of the BBC and Channel 4 to form an alliance that would reshape the UK’s television industry. Wayne Garvie , the outspoken British executive who oversees a content empire that includes The Crown and Industry , argued that Channel 4 should become the “de facto commercial arm” of the BBC to help the two organizations compete with the likes of YouTube and TikTok. He appealed to Matt Brittin, the incoming director general of the BBC, and new Channel 4 CEO Priya Dogra to seize the moment of fresh leadership and confront the “crisis” of fragmented viewing and cratering ad sales that could make British broadcasters a “weak field of has-beens.” “They come with none of the public service baggage that’s held other people back. They need to come together and work out a shared solution to the problems,” Garvie told the Creative Cities Convention in Liverpool.…