The Philips 24PHT4000 has one of the thinner depths (only 35 millimeters) amongst similar spec televisions of this age. Across all the TVs that were launched around the same time as this TV the depths range from 4.3mm to 100mm, and the average depth is 60mm.
There are a number of other 35mm thick TVs currently available that you might want to look at including the Philips 24PHK4000 (£195.72) which is cheaper.
TVs with a thicker depth that might be worth considering include the SEG Trento (£214.57) (44.5mm) which is also cheaper.
What does "depth" mean?