The manufacturer does not use software, copyright, or other devices to restrict the use of products and services that would otherwise be possible to use with your existing products (e.g., set-top boxes, third party applications, etc.).
The manufacturer’s terms of use prohibit people from using their software with other devices not made by the manufacturer and from modifying, reverse engineering, or decompiling the software, all of which would be methods that someone would likely use to create an interoperable product.
Other web searches did not reveal any information to suggest that the manufacturer was accepting of interoperability with its products.