A documentary television film is a documentary film made specially for television stations or for specialty documentary channels, or in case of political and historical documentary subjects in news channels, without the intention of showing it in movie theaters. This film is include in television movies and distinguished with theatrical feature films. Another good example of television documentaries are the travel documentaries that are featured in specialized geographical or tourism television channels like the National Geographic Channel. The films might end up showing through in film societies or in theaters that specialize in showing documentaries. However, in rare occasions, the television documentaries become so popular that they are launched for wider release in movie theaters.
Too long and slow for its good Ken Burns baseball sounds like the old uncle repeating the same stories long after he made his point.