I would suggest passing on Neil deGrasse Tyson or at least taking a second look. His smugness alone is enough reason for me to not have anyone, especially kids, look up to him. Not to mention, he's often just flat out wrong. I personally cannot stand even seconds of hearing him speak, and I find him insufferable. It's his lack of humility that really gets to me.
The original Cosmos is still available, and it's quite good.
These videos may not be the best, but it shows a side of him that I find distasteful. He behaves the same way in every panel I’ve seen him in.