by Lee Warren » Jul 23rd, '07, 00:49
Two things stand out as obvious answers to your query. Firstly, as in all professions, performers vary in both their talent and in the quality of their work from day-to-day. We all have off days, and you may have seen this performers on one of his/hers.
Secondly, Blaine and Brown etc., good as they are, benefit from TV in terms of editing, pacing etc. A live performer should never be compared to a TV performer. Even Brown is VERY different live compared to his TV work, for very good reasons.
Best,
Lee