I work at a TV station and we use something like these [1]. Basically hundreds of video ins and outs that you can mix and match with the press of a button. [1]

I work at a TV station and we use something like these [1]. Basically hundreds of video ins and outs that you can mix and match with the press of a button. [1]: https://www.grassvalley.com/products/routing/vega-100-series/ https://www.grassvalley.com/products/routing/vega-100-series...