Windows 7: Cannot locate recorded TV shows.

Is this an iso entirely of your old system? if so, you could extract it, and see if the tv files are in there. What program did you use make the iso? Usually the program that created the iso, should also give the option to browse the iso file. Power ISO is a great program for handling iso files. I am not sure there is any real way to make them smaller, not even sure if saving them to a compressed drive will work or is a good idea. Hopefully someone can shed better light on that.