Tonight has possibly my favourite disused station of the whole series. Marlborough Road is so unexpected! Kings Cross St Pancras also tonight, which is just fascinating on so many levels. #SecretsOfTheLondonUnderground U&Yesterday 8pm. Tim Dunn Siddy Holloway

A secret of #SecretsOfTheLondonUnderground for you: The whole series came from a private visit I made with Siddy Holloway & Chris Nix to Angel station. We spent ages down there, chatting, plotting. Angel gave birth to the show. It features tonight. 8pm U&Yesterday.

I have to pay tribute to the legendary Bill Turnbull. I worked with him in the early years of my career. He taught me so much about language and writing. Bill’s influence is still in every single show I write. “Is it less or is it fewer?” Thoughts with his family. Rest easy, pal.

Guess what we’re doing. Tim Dunn U&Yesterday Josh Swetnam @RapidPictures

Monorail fun. Channelled my inner Tim Dunn and made a vid. Great day with Son Beaulieu

It’s 4.45am and I’d love to tell you where we’ve been all night. Sadly it’s against the Laws of Television. But there’s a brand new series of #TheArchitectureTheRailwaysBuilt on U&Yesterday tomorrow @ 8pm so hooray for that!

When I travel the UK, I send Tim Dunn photos of railway architecture to see if he can identify it. Ahead of the new series of #TheArchitecturetheRailwaysBuilt @ 8pm tonight, I’m sharing one that totally foxed him. Can you beat the master? Name that architecture! Taken Aug 2020

Look! It’s Swindon. The location of the first ever day of filming for #TheArchitectureTheRailwaysBuilt with Tim Dunn. Incredibly, that was 4 years ago!

Join Tim Dunn and Siddy Holloway tomorrow night at 8pm on Yesterday and U as #SecretsOfTheLondonUnderground returns and in this EXCLUSIVE first look clip, you can see a little bit of what happened when they visited Camden Town...

Brand new series of #SecretsOfTheLondonUnderground starts tonight at 8pm on Yesterday and U. Ten weeks of joy and fascination from Tim Dunn and Siddy Holloway and our pals at London Transport Museum. Made by our brilliant team BrownBobProductions. Feast your eyes!

All aboard! #SecretsOfTheLondonUnderground continues tonight at 8pm on Yesterday and U. And here's what Tim Dunn and Siddy Holloway are up to this week...

Lovely when making shows like #secretsofthelondonunderground and viewers contact us with their own stories. Robin emailed me to share family documents which give fascinating insight to the tube's war damage. He's on tonight's show. 8pm, U&Yesterday Tim Dunn Siddy Holloway

Tube aficionados might think they know everything about Down St. But there's some tantalising new details on tonight's #SecretsoftheLondonUnderground. We also visit Dover Street (today's Green Park) which is glorious! Join Tim Dunn and Siddy Holloway on U&Yesterday at 8pm

I've wanted to get to British Museum station since we started making #SecretsOfTheLondonUnderground. We've finally got there and it doesn't disappoint! So few people have been, we genuinely had no idea what we'd find! Brill! Join Tim Dunn Siddy Holloway U&Yesterday at 8pm

Oooh, and we'll reveal what's going on here! #SecretsOfTheLondonUnderground U&Yesterday

Anyone else get excited when they get a hotel room with a railway view?

Please stand by for further announcements.

Over to Tim Dunn and Siddy Holloway with some exciting news about #SecretsOfTheLondonUnderground...

The next series of #SecretsOfTheLondonUnderground will arrive onto Yesterday and U in July as Tim Dunn and Siddy Holloway unearth more fascinating secrets about the Tube's rich history!

Would you look at that? The last frame of the new series of #SecretsoftheLondonUnderground #SOTLU. All signed off and ready to be delivered to our pals at U&Yesterday. A brilliant series with lots of places that are very hard to get to! Can’t wait for you to see it.