May I have your attention please you can now book your train tickets on Uber and get

10% back in credits to spend on your next Uber ride so you don't have to walk home in the rain again.

Trains now on Uber. T's and C's apply. Check the Uber app.

Just imagine what your best Christmas ever would sound like.

Thank you for calling National Lottery and I can see you calling about a winner today, is that correct?

Yeah, I think I have. I should take a double check for the car wheel.

Yeah, I can confirm that you have won the top prize 1.2 million.

Oh my word! Happy Christmas! Why do you know?

You have the best Christmas ever.

I got a hair thing.

This Christmas, it could be you. The National Lottery. Rules and The Times, I'm Matt Chorley.

I've got a secret. Come closer and I'll whisper it to you. I find Brexit a bit boring.

Now professionally I'm obviously gripped by every twist and U-turn but I can understand why some people might not be.

However, this is the week when Theresa May triggers the infamous Article 50 and All Hell breaks loose.

So to make sure you can impress your friends at parties with knowledge of customs unions,

passporting rights and grandfathering regulations.

This week we bring you the Bluffers guide to Brexit.

I'm joined by Oliver Wright and Henry Zeffman, the Brains behind the Times Brexit Briefing, sign up at the Times.

The Times. UK, plus Jill Rutter from the Institute for Government.

Welcome to you all.

Now we were asking for Red Box listeners and readers to send in some questions which we'll come on to in a minute.

But we'll start with an obvious one, Ollie, what is going on this week?

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