What you're about to see happened in on Scotland television last night. Needless to say,television viewers were stunned when a sex scene appeared in the background during a news debate last night.

A naked blonde woman could be seen on a studio TV screen as Ed Miliband's leadership of the Labor Party was debated on Scotland Tonight.
Take the jump to watch the video. Keep your eyes on the upper right corner of the screen.

The raunchy clip which appeared on STV - is thought to have been from an episode of Channel 4 drama Shameless.