hi, just yesterday I bought this RPTV Samsung SP42W4HPX, I am suppose to get it delivered on thrsday, but should I cancel the order? whats the life span like? its the only thing I forgot to ask!!!! how many hours? the picture on it looked great quality though! just wana know if I should cancel and go for a 32 or 36 tv? thanks guys, sorry if its in the wrong forum!