(Image source: http://to.pbs.org/dPjzea) I had a taste tonight of what it was like to watch theater on TV and tweet. Verdict: I couldn’t do it — very well, that is. I had my laptop  and Downton Abbey in full view before me on HDTV. I tweeted, maybe only twice during the show. The action was unfolding much too furiously on TV for moi to tweet and watch the episode together. No, multitasking was not possible and an undeserved injustice to a fine program like Downton Abbey, a Masterpiece (literally!) where…