[2] After training and working as a singer and part-time presenter of children's television programmes, she started reading Welsh at Cardiff University.
[citation needed] She then took a two-year break in order to present children's sports programme Cracabant before finishing her degree at Cardiff University.
During this period she also presented Saturday afternoon sports programme Camp Lawn (Grand Slam) with Dylan Ebenezer on BBC Radio Cymru.
This led to production and presentation work on Sky Sports on its darts and pool coverage.
[3] Siôn then presented a number of non-sports programmes on S4C, including talent programme Wawffactor, S4C's coverage of Eisteddfod yr Urdd and presented Y Briodas Fawr (The Big Wedding) with Rhodri Owen.