Seriously though, log in to your Comcast router 10.0.0.1
User name: admin
Password: password.
change the security type to WPA 2 and AES ONLY! No TKIP/AES.
Go into your TV network settings. Change IP address to 10.0.0.25 or above.
Change your DNS to 8.8.8.8 or 8.8.4.4. Both google servers.