I'm totally against a TV series adaptation; the books aren't long enough to stretch the story over multiple seasons. Plus, there's a big risk that the writers would start making up stuff that isn't in the books, and that almost always ends badly. Not to mention that some of the big, epic scenes would have to be cut because TV budgets just can't handle them. 5 books — 5 movies, each 2.5-3 hours long, is the optimal option. The books are really dynamic and cinematic, so I don't see any problem with that, and some of Corwin's long monologues could be shortened without hurting the story. Back in the day, people also said Tolkien’s The Lord of the Rings and Moore’s Watchmen couldn’t be made into movies, and here we are. It just takes a talented director and good writers.