If you are pointing at the Storeton Transmitter, this has English and Welsh channels since switch over.
Compounded with this is that some people pointing at Storeton are also pointing roughly in the direction of the Moel-Y-Parc the big Welsh transmitter.
The Wirral has always been poorly served for Terrestrial, with Winter Hill being the main provider which is at considerable distance. Storeton always was a mash-up and we have a couple of smaller transmitters (West Kirby and Bidston) to try and patch up some holes.
To my mind, Moel-y-parc have English added to it, Storeton, West Kirby and Bidston should be abandoned and a transmitter similar to Storeton should be placed at Flaybrick
The West Kirby transmitter is located in Caldy.
The Bidston Transmitter is located in Moreton.