The highest display resolution of the 24LF450 is HD Ready. That's 56% less display resolution than the most frequently found HD type of Full HD.
This television's display resolution (HD Ready) is actually the worst display resolution amongst all similar spec TVs that have been around for around the same time as the 24LF450.
The best display resolution amongst comparable types of television is Full HD.
TVs with a higher display resolution that might be worth considering include the Salora 22LED1500 (Full HD and cheaper), or the Samsung T22E390 (£130.73) (Full HD and cheaper).