why not have a downloadable file that can be played in game with our own computer graphic card at full screen and resolution
each episode except episode 6 will have the 3 shorts that followed it attached to the episode via a patch-like update
you can release a file that installs the new voice and animation files into the directory of the game and then add another tab to the games pulldown menu that you can play the shorts from
when a new short is released you update the old installer to contain the new short.............. and in the end when the next episode comes out you will have a single installer that adds all the of the corresponding shorts for that episode.................. and after you fix any of the bugs in an episode and offer version 2.0 of a particular episode you can incorporate the short installer into the main one for that game
then as an added bonus on the version 2.0 games, the shorts will play automatically after the credits roll, and are not avalable untill after you have finished the episode............. this way you avoid spoilers and you make the player feel like they accomplished something by unlocking the shorts
maybe you can even hide the shorts in the game itself, like easter egs and you need to find them like an item, or accomplish something to unlock them
what does everyone think of this idea?