To get the old episode of a particular content, you need to have access to the original source where the episode was first published or released. If you are referring to a streaming service like Netflix or Hulu, you can check to see if they have the option to view previous episodes in their library. Alternatively, you may be able to purchase the episode or season on a platform like Amazon or iTunes. If the content was originally aired on television, you may be able to find it through a network's website or by checking their broadcast schedule. It is also possible to find old episodes through DVD or Blu-ray releases or by searching for fan-made copies or uploads online. However, it is important to ensure that any source you use to access old episodes is legal and does not infringe on any copyright laws.