Getting Linked TV Shows

Is there a method to retrieve the list of TV Shows linked to a movie, and vice versa, from a python script? I've been searching the XBMC API and JSON documentation for an answer, but I haven't yet found anything. I did come across VideoLibrary.GetMovies in the JSON API which allows me to retrieve information about movies, including the showlink property; however, showlink just appears to be the title of one of the linked TV Shows, which doesn't enable me to retrieve other information about the shows. Other than that, the closest I came was a deprecated HTTP API method that executed arbitrary SQL commands against the XBMC databases.