The eternally surprising thing about Jago and Litefoot is that they don't even meet each other until part way through the fifth episode. And yet, the minute that Litefoot opens the door and Jago mistakes him for his own servant, something truly magical happens and they become the ultimate Holmes double act. It's partly the writing, partly the acting and partly an extraordinary chemistry between Benjamin and Baxter that makes their bonding feel inevitable instead of misplaced. Even before Big Finish came along I found it impossible not to imagine their lives continuing outside the frame. Much as I can't imagine Ian and Barbara not getting married, I could never imagine Jago and Litefoot not being Best Friends Forever and having lots more adventures in Victorian London.
Fortunately Big Finish ensured that they finally got their spin-off show, and IMHO it's some of the best stuff they've ever done, in large part because the leads are a complete joy to listen to no matter what they're doing. One of those pairs of actors who could read a phone book at each other and make it funny or touching or both at once.
Apparently Trevor Baxter used to joke that he'd have nothing to live for if they cancelled the series, and I don't think you can say fairer than a run of thirteen box sets (plus extras!) that was only ended by the death of one half of the principal players. I hope he knew just how much his work was appreciated by fans everywhere.