The HbbTV Association says it has finalized and published its Operator Applications Specification or OpApp spec. The idea is to allow a special class of apps which can act as set tops on smart TVs for operators, but instead of sitting on the various OS’s of smart TVs, it is built on top of the HbbTV apps. Operator apps would have access to deeper parts of the chip architecture so that the TV could be set up to always boot with a particular operator’s UI. All it needs is an agreement with the manufacturer. Various operators have tried deploying their user experience straight to connected TVs, but so far, such deployments have been specific to the operator and/or TV manufacturer…