I used to have a Maplins TV aerial. It was pretty good and would work when the Status 530 on the van was struggling.
Before you commit to it though, have a look in the Screwfix catalogue. They have a range of aerials made by the same company who make them for the leisure industry. Usually, at half the price.

I have a one from Screwfix which is a cracker. It is huge and luckily I have lots of storage space for it. They sell smaller ones as well.