Hello! My church is beginning to live stream and we are going to be using the vMix software but we are in need of a capture card the has at least 2 HD input ports and 2 RCA output ports. we have 2 cameras that are both Sony HD 1930x1080 so our online live stream will be in HD but the tvs that members view in our sanctuary only has RCA cable lines connected to them for now. We have already set up the computer with everything else supported (i.e. memory, graphics card ect..) but I am unsure what capture card we need to purchase to ensure we capture video and audio correctly. If we cannot find this, or it's not in our budget, would it just be better to change the RCA cables to HDMI cables? If so, what would be the best capture card to purchase then? Please help!! Thanks!