Cable for internet and tv...
 

Can I splice a dedicated cable with a two way and run one line to my modem and one to my tv?

i wouldnt if i were you you would lose your signal to your computer modem

You can buy a spliter at any electronics store. ie male on one side two males on the other side. Put your dedicated line to the to the single side and your computer tv to the dual side. You have to pay for both services of course

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