 They were replaced by higher powered digital transmissions.As a side-effect of frequency-changes elsewhere in the region to do with clearance of the 800 MHz band for 4G mobile phone use, Moel-y-Parc's "Digital 3&4" multiplex was moved from channel 49+ to channel 39+.In terms of land area and population, Moel-y-Parc delivers a receivable signal to a greater area, and a greater number of potential viewers, in North West England than in its intended coverage area of north-east Wales.