B & H video has a sele

B & H video has a selection of video mixers, several under $1500 that have four inputs and all the bells and whistles of a basic switcher. Any of them can meet your needs. I would recommend that if you can’t afford to purchase a new switcher, you can use B & H to learn about your options then check out eBay or any number of video outlet stores.

Good luck in your search.