Chimney sweep Spencer drops by the studio to inform us about her history with birds, her connection to Princess Diana and a very vague knowledge of chimney sweeping.

As always, feel free to follow Colin and Cillian's 'handlers' on Twitter:

Mark Cantan & Luke Benson

How was friendship first invented?  Do we still need it?  Who are the best friends of all time?

As always, feel free to follow Colin and Cillian's 'handlers' on Twitter:

Mark Cantan & Luke Benson

Skybear comes in to tell us all about how he's been living life as Ireland's only registered Roman gladiator and what discoveries he's made by doing that.

Today's guest Skybear (a.k.a Trevor Lynch) (a.k.a Stephen Bradley) can be found:

On Twitter.

His Dublin-based Improv Theatre is MOB Theatre.

His podcast is Watch Wrestling With Me.

Listen and follow all the things

As always, feel free to follow Colin and Cillian's 'handlers' on Twitter:

Mark Cantan & Luke Benson

You may not have heard of them.  They may not have heard of themselves.  But they are everywhere.  Possibly.

As always, feel free to follow Colin and Cillian's 'handlers' on Twitter:

Mark Cantan & Luke Benson

Cillian and Colin bring you up to date on the goings on in the trouser department.  

As always, feel free to follow Colin and Cillian's 'handlers' on Twitter:

Mark Cantan & Luke Benson

Colin and Cillian have been looking into, over and under bridges and Don Knotts.

As always, feel free to follow Colin and Cillian's 'handlers' on Twitter:

Mark Cantan & Luke Benson

Cillian and Colin bring you up to date on the origins of the standard helmet from monkey times up to their uses in the industrial age and the development of sky diving.

As always, feel free to follow Colin and Cillian's 'handlers' on Twitter:

Mark Cantan & Luke Benson

A brief history of Coca-Cola from its discovery by Henry Ford to the design of the classic bottle.

As always, feel free to follow Colin and Cillian's 'handlers' on Twitter:

Mark Cantan & Luke Benson

Colin and Cillian discuss the fascinating origins or The Skellig Islands: where they came from, their earliest inhabitants and how they eventually became uninhabited.

As always, feel free to follow Colin and Cillian's 'handlers' on Twitter:

Mark Cantan & Luke Benson

The guys chat Teeth and Doc Martin.

As always, feel free to follow Colin and Cillian's 'handlers' on Twitter:

Mark Cantan & Luke Benson