No.2843
I'm not sure what they watch or if they watch anything at all. Probably regular home dramas and Japanese daylight television.
No.2871
Rika likes Tokimeki Tonight
No.2897
Card Captor Sakura is referenced by Keiichi in watanagashi, it was during the game Sympathies. Although it was referenced as Card Master Sakura, so maybe in their universe it was released 13 years earlier under a different name.
No.3175
I need to hop back on Higurashi, I got filtered hard by episode 2 but I can 'see' it. Considering doing a write up on a feminist reading of Episode 2