can anyone tell me which cable to buy to connect laptop to tv please, I have been looking but so much different ones I really don't know about these things. I know it's HDMI but that's all.
If you know it's a HDMI cable then you've answered your own question, you need a HDMI cable!
Might be better to post the make and model of laptop and TV though so somebody can check you're correct!
Also don't get fooled into buying a expensive HDMI cable, a £5 or less cable will give exactly the same results and quality as a £70 HDMI cable that places like comet etc etc will try and sell you.