The archive plugin will keep a history of all entries from a given task, whether they have been accepted or not. This archive can then later be searched, and entries injected into a task again.
Simply enable without any tagging.
archive: [torrent, tv]
Search (via commandline):
archive search [@TAG] [@TAG] KEYWORD
Note: if keyword has spaces it must be quoted.
Retrieve and inject into task (via commandline):
archive inject ID [FORCE]
For more examples and complete commandline/CLI usage see the CLI archive article.
flexget_archive: [tag, tag]
This works with discover and also with urlrewriting but has less use in there.