I thought it would be easier to explain with images! I think this is what toi were wanting to know?

Ok, first toi go to customize, of course. Then toi go down to where it says pages and click on that.



Then click add a page .



Where the url is put whatever your liens are going to be about (shows, ships, characters, etc.)



Type something, highlight it, and then click on insert/edit link.



Go to one of your tags (like your Grey's tag) and copy paste the url into where it says Link URL. (You can't see it but it says lizziebennetdarcy.tumblr.com/tagged/grey's-anatomy). Then where it says target pick whether toi want it to open your tag in the same window ou in a new one (I always pick new)



Then click insert and you're done with that tag! Then toi just have to do that with all your other shows and you're done!



Then toi can either put it right in your description like houx a dit in response to your question, ou if your theme allows it, toi can put it in a page like i did.



Not sure how helpful this was, but I hope that it helped at least a little bit!