Ashes To Ashes' ratings fall

Will the BBC come to rue their decision to move Ashes To Ashes from Mondays to Fridays? Episode 2 of the timeslip cop show managed 4.86m viewers on BBC1, down 640,000 from the previous week's premiere.

Considering the fact the premiere aired over Easter, when a lot of people might have been away for the weekend, I was expecting ratings to go up in week 2. You can't even add the BBC HD ratings to this figure, because the HD simulcast was bumped to Monday because of the US Open golf. Maybe a lot of HD fans have waited for tonight? Let's see how Episode 3 does this Friday, as there can't be any excuses if ratings slip again.

What do you make of this? 4.86m isn't a total disaster in this day and age, but it's a little odd considering Ashes is an established show in its final year, with a big fanbase behind it. Are Fridays to blame, because a lot of people are out? Are people bored by the show now? I've noticed a lack of comments on my own reviews, in comparison to last year. If you're not watching it, but you did last year, why is that?