I've recently learned that the Blackmagic Intensity Pro capture card is unable to recognize 240p/i and 480p/i, two resolutions that I am desperately wanting to use for streaming legacy consoles. Blackmagic support said that many people use a scan converter, connecting the console to the converter and the converter to the BMIP. The problem is, I know absolutely nothing about scan converters and what exactly I need. I've done some research, but I still have no clue as to what direction I should go.

Does anyone know anything about scan converters and what I should do to have the BMIP recognize these older resolutions? I'm looking to convert these lower resolutions to 720p and/or 1080i. Any help is much appreciated.