Looking for a card to output multiple CVBS signals
I am working on a SD homelab cable tv setup. I have a server running a custom fork of DizqueTV which creates multiple network streams from a Plex server. Currently, I am using raspberry pis with composite out to RF modulators that get combined to serve multiple CRT tvs around the hosue.
That severely limits the number of channels I can serve as I have to have a Pi for each channel. Wondering if anyone has any suggestions for PCI-e cards that can output 2 or more CVBS signals and a good way to source some.
I've done some searching around and have come across SoftLab FD322 and StreamLabs 4R1T, but haven't found any for sale anywhere. Also looked at SoftLab Forward servers as they used the FD322 as a base but came up empty there as well.
Any suggestions would be super helpful!