signal loss running cable to both tv and pc

Essence

Member
Sep 10, 2000
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i just got a voodoo 3500 with tv in/out. i have regular cable, when i run it through my pc everything looks great, but if i use the coaxial out, and turn the tv on, the signal is very fuzzy. also, most of my channels are not being detected if i have the coaxial cable run through the pc. should i get a coaxial line splitter and split the connection before the pc split, or is there some fix to this problem i am missing..

thanks