v18 - DVD Order

Hello
Can anybody help me please
I have problem with my Video Library 

Some DVDs showing a wrong DVD Order e.g "21 Jump Street"

DVD Order is
Session 1, Episode 1 Pilot 
Session 3 has 24 Episode 

TheMovieDatabase and TVDB Database
Session 1 Episode 1 Pilot Part 1
Session 1 Episode 1 Pilot Part 2

Session 3 has only 20 Episode 

Can anybody help me how can solution this problem ? 
 
              Episode 2 


Other TV Shows DVD the same 
e.g 
Baywatch 
Columbo 
and andy more ....

I want to use DVD Order 
How can do this?