I know I’m a little late to the party on this one, but I liked the call out to School Days in episode 1 of ef – a tale of memories. Nice Boat!:

Thanks to rollchan for pointing it out. He kept saying “nice boat!” and a time stamp in comments, and I went back and watched the episode a couple times and was like “wtf is he talking about! there’s no boat in the episode!” lol. Then I tried to watch really, really closely at the right time and saw that the paper flipped. Then I was like “I wonder…” and paused it right then and what do you know?…nice boat!