Weeeeellllll .... 96 mins/24 means that there are 4 full sections and for every section there is 6 minutes of commercials. So 6x4 means that there would be 24 minutes of commercials!!
for an angle of 780°, we can say that is really a 360° + 360° + 60°, so two full revolutions plus an extra 60°. Check the picture below, with the coterminal in green.