It would be great if you'd fact check these VERY VERY simple things before you post. If you feel the need to lie and misrepresent the globe position, well, it's probably because you have no actual evidence for the flat earth. Else, you'd simply overwhelm us with evidence of the flat earth instead of misrepresenting the globe model.
a. Tyson said it's pear shaped only because he was describing the VERY slight oblateness to the interviewer, and the interviewer said, "Sort of pear-shaped" and Tyson, shrugged and agreed, then at the VERY end he clarified and said, "But cosmically, it's almost a perfect sphere".
Misrepresenting what Tyson said is either lying or ignorance. Either way, it's not intelligence. Here is the interview
b. See what @hammarax said. This literally would have taken you 10 seconds to try on a globe yourself to see how it works. Again, if you have to misrepresent the globe model, instead of overwhelming us with your own evidence, well, that's simply in response to you having no evidence.