1st Video: Si scowl followed by Ne toggling (7:54 and probably other places) Thoughtful hand-to-mouth combined with Ti downward disengaging (no tension) at 1:40 (and other places) Wide smile, emphatic Fe pushes.
2nd Video: Looks more led by eyes = P-lead. Loose posture as he sits in his chair, frequently shifts position (Pe?)
Point of possible argument: There are a couple times where he smirks and it moves asymmetrically which might be viewed as an Fi/Te trait, but I don't think those few really qualify. For one, the majority of his smiles are wide and symmetrical like an Fe smile. Also, to present some personal flavor to this analysis, I actually often smirk in a similar manner, where it only really goes out one direction. I think a distinction can be made more so in the fact that, even though it's asymmetrical, it still pushes out towards the ears as opposed to up to the nose. (Personal Fe smile/attempt to hold an Fe smile in?).
Conclusion: Either TiNe or NeTi, would be my guess. I'm leaning more NeTi.