It may be your tuner. Is it atsc? If not then a converter box may be needed. What Gateway have to say about it?
My recently purchased Gateway LX6810 seems to have problems recognizing my digital antenna. The computer comes with a TV Tuner, and when i hook up my ASTC antenna to the back of the computer and try to set up my tv signal it won't recognize a digital or analog signal. This antenna works with my regular TV so i know i get TV reception with it. Is there anyway i can check on my computer or anything to see if the tv tuner is working properly?