Plese do you know the number of episodes that center around the relation of Sato & Takagi ??? all the episodes and movies please !!!

Episodes:
1-Episode 146-147
2-Episode 156-157
3-Episode 304(Special)
4-Episode 353-354
5-Episode 358-359
6-Episode 391-392
7-Episode 431-432
8-Episode 478 (Special)
9-Episode 449
10-Episode 530
11-Episode 535

Movies:
1-Movie 4(just a little)
2-Movie 10
3-Movie 11(just a little)
4-Movie 12(just a little)
5-Movie 13

Ovas:
1-Ova 2