Below is the description provided for a conceptual design for a database and a proposed solution, albeit containing errors and incomplete. Your task is to identify and correct the discrepancies between the textual description and the provided ERD diagram. Additionally, please provide a concise justification for your modifications. Show corrected diagram on paper. $1.$A television set has a unique serial number and is associated with a specific manufacturer and a model for that manufacturer. Each television set is associated with exactly $1$ manufacturer and $1$ model for that manufacturer. A manufacturer has a unique name. A manufacturer can produce $1$ to many television models. A model does not have a unique name but is associated with at least $1$ manufacturer. An electronic store has a unique name and a unique address that consists of a street number, street address, town, state and zip code. A store stocks $1$ to many television sets but a television set can only be found at $1$ and only $1$ store.

Note: Colored blocks in the design are fixed elements they should be the part of the solution.