RE: Pokemon Plotholes!
How do their air the episodes, 1 per day, 1 per week? The timeline might be a lot shorter. Then there's the episodes which is just a continuation of the previous one, which might only end up as an hour or two. Plus, I seriously doubt it'll take a year for them to trek through the whole region, though we don't have a base marker to go from. I believe Littleroot to Oldale was about a half-day, wasn't it? So... shouldn't take that long.
That DOES make it a rather short trek around the region though. Also, the fact that most of the girls that join Ash are supposed to be 10 years old, though they look 18 at the least.