4. Brooklyn Nine-Nine – Captain Ray Holt is seen wearing a “WTC” breast bar throughout the series. It indicates that he is working for 9/11.
5. Game Of Thrones – It’s one of the amazing details where Daenerys Targaryen’s braids increase with every victory.
6. How I Met Your mother – In season six, when Marshall and Lily are discussing what to name their baby, there’s a great callback to season one, episode one, Pilot.
7. SpongeBob SquarePants – In the episode ‘Dying for Pie’, Sponge sarcastically follows Squidward by sliding through the window. However, being a sponge, he unknowingly cleans the window.
8. Friends – In season five, Ross and Joey recollects about the beer they loved in London. In episode 20, we can notice those beers in the fridge.
9. Daredevil – In season three, there is a poster of boxing gym advertising behind Karen that features Parker and Morales which is an amazing nod to Spiderman.
10. That ‘70s Show – Eric Forman drinks beer on the occasion of his 18th birthday. This was connected to an incident in US where the alcohol purchase rates became low in 30 states between 1969-1976.
11. Black Mirror – In the ‘Playtest’ episode, there’s a line in the contract ‘If you have paused to read this, you will die unless you forward it onto five people within a 28 day period’.
12. Friends – In season one, Chandler insists Rachel to change the channel by telling her Weekend at Bernie’s is streaming. However, in season four, Rachel reveals that it’s her favorite film during the trivia quiz.
13. The Office – In season two, Ryan Howard says Jim eats cheese sandwich and ham every day. Coming to season three, Jim says that he ate a tuna sandwich on his first day at office at Stanford to reinvent himself in his new job.
14. The Office – Dwight went on to become an acting manager and Andy starts wearing short-sleeved shirts just like Dwight to become an acting manager like him.
15. The Good Place – We can see the champagne advertisement in the magazine named after Jean-Ralphio which is a call back to Parks and Recreation.