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Sh! Mae'r haul yn mynd i'w wely ac mae'n amser i ni gael stori fach cyn cysgu. Heddiw cawn stori am y llythyren goll. Today's story is about the missing letter.

Mae cyryglau ar yr Afon Tywi'n bethau prin erbyn hyn ond bu Newffion yn siarad gydag un sy'n pysgota yno. The discovered treasures in Llyn Tryweryn, and Carwyn and Carwen's wedding.

When Dad is forced to stop playing with the girls to do some work, the girls do everything in their power to keep him playing games with them on the trampoline.

Mae Gwich yn trio dysgu rheolau barddoniaeth i Dan, Pigog a Crawc ond mae cerdd Pigog yn cael ei chwythu bant! Ratty, Mole, Hedge and Toad lose a poem in the wind and must try to retrieve it.

Mae Hywel Hwyl a Tref Trefn wedi trefnu helfa drysor yn y parc, ond nid yw pob plentyn wedi gwrando ar y rheolau. Hywel Hwyl and Tref Trefn have arranged a treasure hunt in the park.

Mae Esther wedi cael ei hysbrydoli gan y Criw ac eisiau bod yn y tîm. Esther is in awe of the Troop's heroics and wants to join the team.

Mae Grisi yn defnyddio teclyn rheoli o bell uwch-dechnoleg i reoli'r caban. Beth allai fynd o'i le? Grisi uses a hi-tech remote to control the cabin. What could go wrong?

Er mwyn gwella ei thempo wrth ymladd mae d'Artagnan yn mynychu cyngerdd liwt a gynhelir gan Ledi Lala. To improve her tempo in battle, d'Artagnan attends a lute concert held by Lady Lala.

Wyth disgybl disglair sy'n cystadlu mewn pedair tasg anodd ond dim ond un cystadleuydd fydd â'r cyfle i ateb yr un cwestiwn. Eight bright students compete in four challenging tasks, but only one contestant gets the chance to answer the one question.

Mae Fran a Joe yn Aberteifi i gwrdd â phennaeth label gerddoriaeth newydd: Fflach Cymunedol. Fran and Joe visit Lorna Joscelyne's first solo art exhibition in London.

On the final leg of their Irish journey John Pierce Jones and Dilwyn Morgan travel to Roundstone in Connemara, where they meet old friends unexpectedly and make new ones before they raise their sails for the long journey home to Cardiff Bay.

Rhaglen gylchgrawn nosweithiol gyda straeon o bob cwr o Gymru. Nightly magazine with stories from all over Wales and special guests.

Newyddion a thywydd. Coverage of a wide range of news topics and weather with expert commentary and analysis by BBC Wales correspondents.

Opera sebon ddyddiol am drigolion Cwmderi. A daily soap opera featuring the fictional residents of the village of Cwmderi.

Mae'r hunllef yn parhau i Trystan. Wrth i'r gwir am weithredoedd ei deulu ddod i'r wyneb, mae'r sefyllfa yn ofnadwy i bawb. Elen and Mathew continue to try to keep their relationship secret.

Newyddion a thywydd. Coverage of a wide range of news topics and weather with expert commentary and analysis by BBC Wales correspondents.

Cawn fynediad i wasanaeth digartrefedd awdurdod lleol, lle mae swyddogion rheng flaen yn wynebu gwneud penderfyniadau anodd. We gain access to a local authority's homelessness service.

Clwb Rygbi: Gêm Cynghrair Super Rygbi Cymru rhwng Clwb Rygbi Pont-y-pwl a Chlwb Rygbi Llanymddyfri. Super Rygbi Cymru League game between Pontypool RFC and Llandovery RFC.

Part 6/6. Revealing the threats that could destroy our world. From comets to gamma rays, from volcanoes to rogue planets, we'll find out the likelihood of these fatal events striking Earth.