Whether it’s that crucial cup tie or can’t-miss soap episode, there are times when you simply have to have television in your vehicle. It’s the ultimate in on-the-move entertainment for passengers – or for the driver when parked – yet reliable in-car viewing is also very difficult to achieve.

Wired-in systems can be prohibitively expensive, so a portable kit looks to be the best choice. But are they any good? We tuned in to 10 to find out.

Connected to a decent aerial, most portables work superbly. Yet if you’re using the integral antenna, performance can be patchy. A separate magnetic antenna – which is mounted on the car bodywork – is a bit better, but the ultimate solution is a hard-wired aerial similar to those used by built-in systems.