My favorite story was about a boy who'd live forever but his eyes were heavy with the weight of all he'd seen. / The opening lines from the Doctor Who episode "A Town Called Mercy" for Merlin. This fits a little too well.
Why do I love this show so much? The picture will give you the main reason but really everyone did such a fabulous job in coming alive and the writing was so well done. I would just sit back in awe at the end of some of the episodes.