Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Sandra Michaels introduce a magazine programme for younger viewers.

Christopher Trace and Sandra Michaels introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers. If you have ever watched "It's a Square World," Michael Bentine's programme, it is likely that you have seen him grappling with the Bumblies. They are little creatures, with twittery voices and rapid movements, who pop up at the most awkward moments - during a lecture or a song - and take over the programme with their antics and furious energy. You must have wondered about them - where they come from, and how they get in. Today you may have a chance to find out because Michael Bentine himself is coming along to talk about them. We say "may" advisedly, because with Bumblies you never know what can happen!

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

with Christopher Trace and Valerie Singleton.

with Christopher Trace and Valerie Singleton

with Christopher Trace and Valerie Singleton.

with Christopher Trace and Valerie Singleton.

with Christopher Trace and Valerie Singleton.

with Christopher Trace and Valerie Singleton.

Christopher Trace and Valerie Singleton introduce a magazine programme for younger viewers.

with Christopher Trace and Valerie Singleton.

with Christopher Trace and Valerie Singleton.

with Christopher Trace and Valerie Singleton.

with Christopher Trace and Valerie Singleton.

with Christopher Trace and Valerie Singleton.

with Christopher Trace and Valerie Singleton.

with Christopher Trace and Valerie Singleton.

with Christopher Trace and Valerie Singleton.

with Christopher Trace and Valerie Singleton.

with Christopher Trace and Valerie Singleton.

with Christopher Trace and Valerie Singleton.

with Christopher Trace and Valerie Singleton.

with Christopher Trace and Valerie Singleton.

With Christmas two weeks away, the Blue Peter team, led by producer Biddy Baxter, is preparing for its seasonal shows. Tonight, Christopher Trace and Valerie Singleton will present some festive items. They'll share the history of the Christmas tree and introduce a visiting troupe from Kitzbühel, Austria: The Gay Tyrolese, led by Toni Praxmair. This world-famous group of dancers and singers will perform several traditional routines, including the humorous 'Woodcutters' Dance' and a 'Miners' Dance' using cowbells. The most exciting dance will be the 'Schuhplattler,' where the performers slap each other's leather shorts. Additionally, in the first of a new series, Gordon Murray will demonstrate how to make bottle puppets for a Christmas show.

with Christopher Trace and Valerie Singleton.

with Christopher Trace and Valerie Singleton.

with Christopher Trace and Valerie Singleton.

with Christopher Trace, Valerie Singleton, Petra and Jason. The Christmas of the White Rhinoceros, written and directed by Dorothea Brooking and The Story of the Crib.

with Christopher Trace and Valerie Singleton, including The Changing of the Guard - Blue Peter cameras visit Buckingham Palace to see one of London's most famous spectacles.

with Christopher Trace and Valerie Singleton.