Fans have been on tenterhooks after Nessa proposed to Smithy in last year's Christmas special.
The Gavin And Stacey star is one of the celebrities taking part in the new series of Who Do You Think You Are?.
"What’s occurring? Not a lot, other than a global pandemic."
The recent Christmas special is now the most-watched TV episode since records began.
Nearly 18 million people tuned into the Christmas special – and they're all hungry for more.