I don't think that Philips marketed TVs back then in the UK....Pye did, and became part of Philips.
There was Ecko (perhaps a while earlier) and Ferguson, Murphy and Ultra...all three incorporated into the Thorn group.
// Our first colour set around 1973 was a Mitsubishi, it cost more then than they do now.//
no British firm could offer the precision engineering required ( hem hem)
The tube had a meshy screeny thing between the cathode and the fluorescent screen that had to be engineered to micron accuracy
Tvs were hugely expensive which is why so many had a money slot on the side - put your coins in and the tv worked. People would rent them and the cost of the tv licence was usually included in the rent.
Radios were also a luxury in the 1930s. The average weekly wage for a man was £3 9s. A typical wireless set was £10 2/6, including installation.
The first tv I remember my parents owning was a Grunding. When the picture started rolling a quick thump to the side of the case put it right :D