Wrexham-Rhos

The Wrexham-Rhos relay entered full programme service as a two-channel relay on 1 July 1977.

1 November 1982 - 30 March 1997
Channel 67 was re-assigned from HTV Wales to S4C soon after its launch on 1 November 1982

30 March 1997 - ca. 1999
The relay expanded from 2 to 3 when HTV Wales returned to Wrexham-Rhos.

ca. 1999 - ca. 2000
The relay expanded from 3 to 4 when BBC Two Wales was added.