Probably because MLP takes up so much time in your schedule, like that of every person who has a pony in their avatar.

Second season or second series?

Because I don't think you've been watching the 1964 season.

Generally, American programs are more likely to be labelled as 'Seasons' than programs from the UK (Like DW). So he was likely referring to the second series.

That is, of course, assuming you're American, Eeko.

... You are American, right?

Yeah, second series.