my tv goes up 1080i nd i have tried the ps3 in 720p and 1080i and it keeps on doing it on both settings?

any other ideas thanks

Hi i have just bought myself a PS3 and i have connected it to my Samsung HDTV with a HDMI cable. All was goin well until it seemed to just cut out and my tv was left blank and there was no sound but then it came back after about 10 seconds, i carried on playing and this kept on hapening at regular intervals. i have tried it on all my games and it keeps doing the same thing. has anyone got any ideas how i could solve this problem

thanks