Ah, then you are in an enviable position, as you can watch these versions and judge them on their own merits, rather than comparing them to Holy Writ. (I kinda wish I could have done that with the LOTR movies.) Sherlock does include some quite canon things in clever ways, for which I give them credit. Here's an example: in the original stories, Watson had indeed been in the military and been wounded - in Afghanistan. That's serendipity for you!

Since you're not familiar with what's canon and what isn't, I'd be very interested to hear what you think of Elementary, so do come back and give me your opinion. :)