To celebrate 30 years on television, EastEnders has been recording live segments in this week's episodes.

After so many years of practise, you can hardly tell the difference, until someone messes up.

Last night that someone was Jo Joyner, who plays Tanya Branning. Tanya returned to the show to surprise Jane Beale on her wedding day, but made the mistake of asking how "Adam"was doing - Adam Woodyatt being the actor who plays Ian Beale, the character she was supposed to mention.

Despite the shock visible when she realises her mistake, Joyner took the mistake in her stride. 

You never answered me @LauriebrettX how is @AdamWoodyatt ?... #leastyouknowitslive #gutted

— Jo Joyner (@dollyjoyner) February 18, 2015