Aspect ratio converters?

[madlabs]

Howdy All,

I'd like to convert streaming video to 4:3. I did a search here on the forums and didn't find anything. Taking a look around for aspect converter hardware all I could find is this:

https://www.bhphotovideo.com/c/produ...r.html/reviews

No longer being made. There must be something else out there.

Thanks!