From the Sony Canada site:
October 12, 2011
NOTICE FOR SONY BRAVIA® LCD HDTV
Models KDL-40V3000, KDL-40VL130, KDL-40W3000, KDL-40WL135, KDL-40XBR4, and KDL-40XBR5
Toronto, Ontario, October 12, 2011 – It has come to Sony's attention through reports in Japan that in rare cases a particular component incorporated in certain models of 40" BRAVIA LCD HDTV [Models KDL-40V3000, KDL-40VL130, KDL-40W3000, KDL-40WL135,
KDL-40XBR4 and KDL-40XBR5] was damaged and as a result, may overheat and at times ignite inside the television. This could possibly result in a hole at a part of the cabinet ceiling. Sony has no reports of any resulting damages to other property or bodily injuries.
Customers choose Sony based in large part to the trust associated with the Sony brand and the products and services we so strongly stand behind, which is why Sony is committed to addressing this issue proactively.
Beginning immediately, Sony offers all customers of the affected models [KDL-40V3000, KDL-40VL130, KDL-40W3000, KDL-40WL135, KDL-40XBR4 and KDL-40XBR5] a free evaluation for the covered product. Customers who have a television covered by this notice should visit www.esupport.Sony.com/ca
or call Sony toll-free at 1-877-899-7669, to schedule a service technician to perform an evaluation.
When a request is made, a Sony authorized service representative will promptly visit and evaluate the television and repair it at no charge if an affected component is found.
In the meantime, it is important for those who have a covered television and notice any abnormality in their television unit and its performance (e.g.: unusual noise, unusual smell or smoking), to immediately turn the unit off, unplug the cord, cease using the television, and contact Sony. It has been confirmed that symptoms do not occur when the power is off.
Customers can confirm the model number of their television by looking at the label on the rear of the television. Additionally, the model number can be found on their warranty card.
Apparently, 1.6 million TVs are affected.