4 of their first 5 games have been available nationally - the only game that wasn't was against 1AA Northern Iowa.
Of their remaining 7 games, 4 are currently confirmed as TV games either on ABC, ESPN2, FX or FSN. The three games yet to be determined are @Missouri, @Texas Tech and Kansas. I would be that at least 1 maybe 2 or all three will be available on FSN.
That's a minimum of 8 games available nationally for Iowa State - with a potential for 9, 10 or even 11 games.