Charlie Sheen urges viewers to boycott Denise's reality show

Charlie Sheen is urging television viewers to tune out of his ex-wife, Denise Richards' upcoming E! reality series -- after failing to prevent her from including their two daughters in the show.

"I think we should all just boycott the damn thing!" Sheen, 42, said Wednesday.

Last month, a judge gave Richards, 37, permission to include her and Charlie's daughters Sam, 3, and 2-year-old Lola in the show - which is due to air this summer.

But the legal ruling did nothing to dampen Sheen's opposition to the project. "You don't go to court and make stands to prevent that if you don't firmly believe in it," he told People. "The world is upside down sometimes."

The show, which remains untitled, is being produced by Ryan Seacrest's company.