Bo gets a screen test from wicked Mrs M.; Mrs Merton in Las Vegas.

Bo Derek's gleaming smile may have rated a 10, but her eyes were giving out other signals.

They suggested that she wasn't enjoying being the butt of the jokes of wrinkly chat show star Mrs Merton.

The actress, famous for being in the scuddy on the big screen, was an easy target. Too easy.

Mrs Merton cooed: "We had a season of your films on TV one afternoon," and Bo floundered helplessly, unable to cope.

And when Mrs M. cheekily asked if her 70-year-old husband John was now an LA lollipop man, she might have been speaking Urdu as far as Bo was concerned.

The only moment the star relaxed was when tribute was paid from a member of the studio audience.

He described her as a "fantastic actress".

I should point out, though, that this fan was wearing a baseball cap with flashing lights.

At least Engelbert Humperdinck was closer to his host's wavelength. But the sweat glistening on his forehead suggested that the crooner wasn't having easy time either.

The baiting of the formerly famous wasn't the most painful part of the programme. That came in tedious fillers as local OAPs gushed about the wonder of the USA.

Will someone please send this show shuffling off to TV's eventide home?