The highest display resolution of the LT-24C655 is HD Ready. That's 56% less display resolution than the most common HD type of Full HD.
This TV's display resolution (HD Ready) is in fact the worst display resolution amongst all TVs of this type and age.
The best display resolution amongst similar types of TV is Full HD.
If the display resolution of this JVC TV is too low for you then you might want to consider the T22E390 (£129.03) (Full HD), or the T24E390 (£149.50) (Full HD) both from Samsung or the Salora 22LED1500 (Full HD).