Usenet nowadays is crippled with DMCA requests so that a lot of well-known TV shows and movies are taken offline 24 to 48 hours after posted to usenet.
You have to be quick!
Not everybody wants to login to their favorite indexer on a daily basis. Because of this automation tools where invented.
Let automation do the heavy lifting!
Use sonarr.tv for TV Shows! You put in the api key of sabnzbd and from your indexer and the rest is simple, start adding your favorite TV shows.
For movies there is couchpota.to and radarr (fork of sonarr rewritten for movie automation). Setup is just like for sonarr.