Congratulations on the job.
no problem, see i just watched OOTP and i have to say as much as its an ok film(if you just watch the films), i don't like them - i don't like the way the actors portray the characters and i just think the plot in half of them goes too far away from the books.
I think if there was a TV series - you can get 5-10hrs to show a book rather than 2 1/2hrs maximum.
You can add stuff and kinda get the whole picture kinda as you go along. It can balance the light with the dark a bit better than the movies. You can have all the subplots in - nothing neeRAB to be cut!
The other thing with a tv series is that you can make it last a year like the US have 24 epsiodes in a series - ok they have breaks in transmission but it lasts for pretty much an academic year so you can fit it in so you could imagine that you are getting week by week updates of what is happening at Hogwarts.