Final answer:
Yes, you can have both Legacy and X1 in the same household, typically under the same cable service account. Compatibility and setup must be confirmed with your cable provider.
Step-by-step explanation:
The question you're asking seems to be related to cable television and set-top box configurations, specifically referencing Legacy and X1, which are likely referring to different generations of Comcast Xfinity cable boxes or interfaces. In a single household, you typically can have both types of boxes/interfaces as long as your cable provider supports it. This means that some televisions in your home could be connected to a Legacy Xfinity box, while others could be equipped with an X1 box.
To directly answer the question: (A) Yes, you can have both Legacy and X1 in the same household, and in most cases, you don't need separate accounts for each device. The services would be under the same customer account, but you might need to ensure that your service package supports both types of boxes and that they can function simultaneously.
Please reach out to your cable provider to confirm the compatibility and setup requirements specific to your service plan before making any changes to your current setup.