Hello, i have a Asus ASUS M3A78-EM AM2 /AM2 AMD 780G HDMI Micro ATX AMD Motherboard and i wanted to know should i upgrade to the 400 series ati videocard to give me better reception for upstreaming tv shows like BIGBROTHER from online.. i dont play games but my computer is connected to a 73 hd tv... i just want the best reception to fit my tv.. thank you very much