I completely forgot tv channels didn't used to be 24 hour, I'm not sure when it became like that in Australia but I do remember the off the air thing on ABC especially I think.
List is missing the joys of trackball mice and floppy disks.
I don't think it's trying to list all the items we miss... the link at the end goes to an article of cool but dead tech. This is looking mainly at the terms that made it into the language (like "dial a phone") that are no longer literally relevant.