Muffy becomes an opera buff, then Mum gets a job.

A lesson in the art of text messaging.

Home-made hovercrafts, fruit-filled lifejackets and a flying bed.

The kids want to throw a party for Sportacus.

Pete and Nat dance the "bug-a-lug".

Josie visits the beach, but her beach ball has a puncture.

Small gets stuck in a chair.

Little Bo learns to dance the waltz.

Lotta invites Lola to a sleepover.

Repeats are not indicated

10.30 BBC Primary Geography: World Environmental Changes: Somerset Levels (ages 7-11)

10.40 Starship: Literacy (ages 6-7) Double bill.

11.20 Let's Write Non-Fiction (ages 7-9) Double bill.

Westminster news with Andrew Neil and Jenny Scott.

Business and finance news with Adam Shaw, who begins a narrowboat journey along the Trent and Mersey Canal.

Repeats are not indicated
1.00 Maths Channel: Year 5 (ages 9-10) Triple bill.

Coverage of the first round in the World Professional Darts championships continues, with England's Paul Hogan and John "John Boy" Walton (champion in 2001) and Dutchman Co Stompe at the oche. Bobby George and Ray Stubbs introduce the action from the Lakeside Country Club in Frimley Green, Surrey. With live coverage of the FA Cup fourth-round draw at 1.30. Also live onlineatwww.bbc.co.uk/sport

The oven gloves are off for chefs Phil Vickery and Ed Baines. With Ainsley Harriott. Recipes on Ceefax page 560 and via www.bbc.co.uk/food

Darwinian quiz.

Current world champion Raymond van Barneveld - looking to match Eric Bristow 's five-title record - begins the defence of his title against Brian Sorensen. First-round matches are the best of five sets.
0 Digital viewers can access ongoing live coverage via the red button on their handset. Also live online at www.bbc.co.uk/sport

Peru to Brazil. Including the ruins of Machu Picchu and the golden artefacts of the Moche people, who ritually sacrificed humans. With Dan Cruickshank.
Producer Tim Dunn ; Exec producer Basil Comely (Revised rpt)

1/3. The grave threat facing our primate cousins is highlighted over three consecutive nights.
Habitat destruction, the bushmeat trade and disease have led to plummeting chimp numbers across Africa. Zoologist Jane Goodall has abandoned her research to lead a rescue mission - can the decline be halted? Fergal Keane narrates.

Chimp Week continues all this week at 7pm on BBC1

Oxford colleges St John 's and St Hugh 's go head to head in the first of two highest-scoring losers' matches. Jeremy Paxman hurries them along.
Director Vernon Antcliff ; Producer Irene Daniels

2/6. The etymology of everyday words and phrases. The M Words. Who's to blame for clear-as-mud
"management-speak"? What are the origins of the "full monty"? And what is the history of "man"?
With Victoria Coren , Ian Hislop and Bettany Hughes. Director Deborah Lee ; Series editor Archie Baron www.bbc.co.uk/balderdash
RT DIRECT: the book Balderdash & Piffle is only Ell.50 incl p&p (UK delivery only). To order, call [number removed] (landline calls Bp per min max) quoting RT or visit www.rtdirect.sparkledirect.com

With Jeremy Paxman.
[web address removed]

First-round highlights, including
Scotland's Gary Anderson on the oche.

Highlights from the men's first round and the women's quarter-finals.

Zone www.bbcco.uk/learningzone
Languages and Travel Repeats are not indicated
1.00 Talk German In-vision subtitles. 72942 2.30
Germany Inside Out Travel and culture guide.
5.00 Work Talk Germany. Working people.