Thanks to my friend Jongleur7 the initial viewing numbers are in. Tricia Tanaka Is Dead was watched by 12.774 Million viewers.
This is about the same as Stranger in a Strange Land which had 12.8 Million but IMHO this is good as the supposed fan backlash after last weeks episode, many doom merchants were predicting a major drop. This is now the 3rd week in a row it's been at the same mark which shows that it's not losing it's audience and has infact stabilized it's position.
I suspect when the official numbers come out it will be No.1 again in the key demographics. Other shows for last night in the same timeslot were:
CSI N.Y. - 14.043 million viewers
Medium - 7.684 million viewers