What are the differences between the Broken Blade films and series? I've been watching the Broken Blade "films" (as they're referred to on Wikipedia), and they're each about 50 minutes long. I was reading, however, that they are releasing an anime series. I don't really get why they're releasing a series when they already have a series, so I was wondering what the difference is, both in structure (is the difference only length, or is it also methods of video release, etc.) and content between the film series and the anime series.
The most significant difference is that the TV series includes, in episode 10, an important battle from the manga of Girge and the Spartans. Otherwise, the TV series is just a generally better edited version of the films with the following (non-exhaustive) changes:


The order of some scenes during the negotiation in the first film were rearranged for a better and more linear flow.
Scenes like a passer-by remarking on Sigyn's blushing face (first film) and the monologues of newly appointed Mileni Team members (fourth film) were removed.
A short TV special is included in the Blu-ray Box release of the TV series, because Nike died differently than in the films.
Some scenes were played in like 1.25x speed, especially those from the sixth film.
Music was added, changed or delayed for the scenes after Cleo shot at Rygart (third film), when Cleo was changing clothes for the sleeping Sigyn (fourth film), and when Girge appeared on a cliff and smirked before diving off to attack Nike (fourth film), respectively.
New OP and ED songs and animations.


Originally, a spinoff OVA centering around the past of the Golem Delphine and its mysterious creation was planned, but sadly it had been cancelled.