Commonly used TV card function configurations for large LED screens

I met a lot of customers in restaurants and restaurants, and hoped that the large LED screen could broadcast TV programs. Because of the particularity of the industry, I hoped to broadcast live programs that are more concerned by large-scale people such as the Olympic Games, large-scale sports competitions, and military parades during special periods. So how can we achieve live TV? First, we need a TV card. The TV card is inserted into the PCI slot of the computer. What are the specific requirements for the TV card? USB2.0 interface/USB power supply, audio and video three-wire integration/10-bit color sampling , watch videos more clearly/TV/watch all channels (including supplementary channels) TV programs/smart channel search/manual channel fine-tuning function/save channel list function/16-screen video wall function/PAL720X576 pixel full-screen or window high-quality picture quality Display TV programs/full-field video noise reduction function/real-time capture function/real-time soft pressing function/record pause function/multi-plan reservation recording TV program function/integrated media player. These functions should basically meet the basic requirements of LED large-screen TV live broadcast. .