There are a few templates set up to make referencing episode data easier.
|Template:Ep_name||Returns the name of an episode nicely printed|
|Template:Cite vod||Use this to cite an episode or a particular time in an episode|
|Template:Episode sidebar||An automatically-updated sidebar for an episode|
|Template:Ep airdate||Returns the airdate of an episode|
|Template:Ep pretty airdate||Returns a long airdate for an episode (substituted into article pages)|
|Template:Ep vodlinks||Returns vod links for an episode in short format (for "List of Episodes" pages)|
|Template:Ep verbose vodlinks||Returns a bullet-point list of episode vods (for "Links" sections on episode pages)|
|Template:Ep list||Returns an episode list for a show (for "List of Episodes") pages|
|Template:Ep raw||Returns other metadata about an episode (not widely used)|
Adding new episodes to the template
To add new data to all these templates, go to Module:EpisodeData and update the large table there with the new data. As soon as you make a change here, it's reflected on every page where the above templates are used.
Module:Episode is the code that drives the templates. You can use this to add new types of templates.