Hollywood glitz or not, this show is a truly universal tale of family

You'd think that, with Who Do You Think You Are? (BBC1, Tues, 9pm) now in its 22nd series, familiarity would breed contempt.

- Philip Cunnington on Who Do You Think You Are?

After all, there's only so many times you can watch a beloved celebrity sitting at the central island of their open-plan kitchen-diner looking at old family photos before discovering their ancestors scrabbled their way out of Dickensian poverty.

Inevitably, repetition means you would imagine the viewer would fall prey to a sort of family tree fatigue.

But this genealogy show constantly finds ways to surprise you - think Rob Rinder's emotional trek through his family's past in the Holocaust, Greg Davies's claims to be Prince of Wales or Danny Dyer in a ruff.

And the opening episode of this new series was no different - albeit with an extra sprinkling of Hollywood glamour.

Andrew Garfield, double Oscar nominee and one of many Spider-Men, was the focus of the episode and from the off it revealed a few secrets, not the least of which was that his dad's from the US and Andrew was born in LA.

From there, we were off, with mystery surrounding his great-grandfather Ludwig and two unidentified women posing with him in a family photo.