I am very lucky as I live in London which makes it relatively easy for me to see all the best theatre as it is literally on my doorstep. For those non-Londoners, who are not so lucky, or if for whatever reason it is difficult for you to get to the theatre, I am recommending Digital Theatre.
Digital Theatre works in partnership with the leading theatre companies and arts organisations in the country to bring the best theatre to your desktop or television screen.
It is here:
The current productions you can download are here:
What is good is that you can watch the trailer for the production for free and decide whether you want to buy the production having seen the trailer.
People are obviously going to be tempted by Much Ado About Nothing by William Shakespeare starring David Tennant and Catherine Tate. However, of the productions on the list that I have seen, which includes Much Ado About Nothing, I am recommending Into The Woods with Music and Lyrics by Stephen Sondheim, recorded at the Open Air Theatre in Regent's Park. The production was outstanding and won a 2011 Olivier Award for Best Musical Revival.