Thanks for that! You made me look up Tid Bit to see where it comes from. I have heard it several times lately, and wondered, as I also hear it "Titbit", which proves to be the original form. A "Tit" is a printer's mark meaning a letter was left out, like an apostrophe, and it means something little, or tiny. Like saying a "Tiny bit". Of course, in America, we have changed that to Tid, for whatever reason, possibly only puritanical.
Anyway, for all you who enjoy etymology, "There you go".