I confirm this behaviour for bq M10 and Sony Bravia KDL-32W706B.
Both devices "see" each other. The Ubuntu tablet identifies the TV set as "BRAVIA KDL-32W706B" and the TV recognises the tablet as "ubuntu-phablet". After a time, there appears the same error message as in the screenshot here.
I confirm this behaviour for bq M10 and Sony Bravia KDL-32W706B.
Both devices "see" each other. The Ubuntu tablet identifies the TV set as "BRAVIA KDL-32W706B" and the TV recognises the tablet as "ubuntu-phablet". After a time, there appears the same error message as in the screenshot here.