They did make modems for the Commodore, yes... The big obstacle to sending video back in those days was one of bandwidth and storage space - it's not difficult

They did make modems for the Commodore, yes... The big obstacle to sending video back in those days was one of bandwidth and storage space - it's not difficult to add to the protocols. IRC is a pretty well-known client for easily sending files - it's purely a design decision not to display them in-line like Discord and Slack.