Since the Genre/Series tags for all episodes of a given series are the same, why not add some magic to copy them from a previous episode when importing a new one? This way you would only need to set the tags for the first episode of a new series, and the new ones would inherit them. You could then have a single AutoImport rule for the whole \Series folder.
Something like this for the import tags:
Series: firstnotempty(listitem(fieldquery(filename /(path/), filepath(), Series,1,1),0),filefolder(,0))
Genre: listitem(fieldquery(filename /(path/), filepath(), Genre,1,1),0)
Other tags could also be copied in the same way. The expressions look for the first existing file that shares the same Folder name, and copy the needed Field from it.
If you use subfolders for each episode within each series, then a more complex expression is needed (also doable).