All data or images entered here on the TMDb Site are immediately available here on the Site.
But for a request made using the API, it will only be available within 8 hours.
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Thank you! So anything that takes more than 8 hours to show up on the API should be reported?
I've looked at the last two episodes of Mind Field S03 and it's already been 1 day 24 hours and they haven't showed up yet in the API, just wait?

Are the last two episodes you referred to are those?
https://www.themoviedb.org/tv/69763-mind-field/season/3/episode/2 Moral Licensing
https://www.themoviedb.org/tv/69763-mind-field/season/3/episode/3 The Stilwell Brain

https://api.themoviedb.org/3/tv/69763/season/3?api_key={MY_KEY]&language=en-US

{
  "_id": "5c0ab565c3a368252a04ed79",
  "air_date": "2018-12-05",
  "episodes": [
    {
      "air_date": "2018-12-05",
      "episode_number": 1,
      "id": 1636819,
      "name": "The Cognitive Tradeoff Hypothesis",
      "overview": "Humans are the only Earthlings with complex language. But at what cost was that ability acquired? In this episode, Michael Stevens visit Tetsuro Matsuzawa to learn about his influential cognitive tradeoff hypothesis.",
      "production_code": "",
      "season_number": 3,
      "show_id": 69763,
      "still_path": "/1frWLin8vjuQ052jNhV97rppbmr.jpg",
      "vote_average": 9,
      "vote_count": 1,
      "crew": [],
      "guest_stars": []
    },
    {
      "air_date": "2018-12-05",
      "episode_number": 2,
      "id": 1640687,
      "name": "Moral Licensing",
      "overview": "How are our moral decisions influenced by factors we’re not aware of? A phenomenon known as Moral Licensing claims that when we do something good, we often subconsciously allow ourselves to then do something bad. In this episode, Michael Stevens takes a look at whether those who donate money to charity become more likely to let a kid take the blame for a crime they know they committed.",
      "production_code": "",
      "season_number": 3,
      "show_id": 69763,
      "still_path": "/n7QombdwTauTbu9BtqetVEzyuNm.jpg",
      "vote_average": 7,
      "vote_count": 1,
      "crew": [],
      "guest_stars": []
    },
    {
      "air_date": "2018-12-12",
      "episode_number": 3,
      "id": 1640689,
      "name": "The Stilwell Brain",
      "overview": "There are 100 billion individual neurons in the human brain. Working together, they allow us to make sense of, and move through, the world around us. Scientists have built replicas of the human brain with computers, but no one has ever successfully made a brain out of humans. On this episode, Michael Stevens travels back to his hometown of Stilwell, Kansas, and turn it into a working brain!",
      "production_code": "",
      "season_number": 3,
      "show_id": 69763,
      "still_path": "/R1HEFny4UoPcGzeAv4khLO5Xec.jpg",
      "vote_average": 0,
      "vote_count": 0,
      "crew": [],
      "guest_stars": []
    }
  ],
  "name": "Season 3",
  "overview": "",
  "id": 114048,
  "poster_path": null,
  "season_number": 3
}

They show up now! Thank you!