Well, if it helps any, since I don't know how many gigs are in your series of 24, my 32GB iPhone has about 8-10 GB left of free space. In the used space I have 1500 songs, 3000 photos, about 7 pages of apps, and the following videos:
Movies: Full Metal Jacket, Taking Chance, Star Trek XI.
TV Shows: 2 episodes of Glee, 1 episode of Men of a Certain Age, 1 episode of Mythbusters, 1 episode of Modern Family, 1 episode of NCIS, 1 episode of South Park, 1 episode of Stargate Universe, 9 episodes (1 hour each) of Top Chef, and 1 episode of Two And A Half Men.
Between just the movies and the Top Chef episodes, I have about 15 hours of video in my iPhone's iPod.
Hope this helps.