That definitely sounds like a hard drive issue to me. The long boot time, and the intro video stuttering are signs of the drive not being able to read well.
Another symptom, is that after selecting System Information, the values will be blank, and take several seconds, or even a minute to fully populate.
I'm just posting this for others who might come across this thread, since I'm late to the party (RMA already in process).
As of 03/13/15
I'm going to put all things TCF on ice, or back-burner, for now (could wind up being for the foreseeable future).
I may still post from time to time, until it's just not possible, at all, and might not be able to follow-up/through with posts/PMs.
My time/focus needs to be elsewhere. PMs welcomed, but responses not guaranteed. In need of a miracle.