Correct : d

Correct Option: d) on.

Complete Sentence: Is there any good show on television tonight?

Explanation: The preposition "on" is used when referring to a broadcast medium or a service that delivers content.

• We use "on television" or "on TV" to mean something is being shown or broadcast via the television medium.
  • Example: "The football game is on tonight."
  • Example: "What's on channel five?"

Why the Other Options are Incorrect

• a) in: This preposition is generally used when something is contained inside a physical space (e.g., "The batteries are in the remote") or part of a piece of published content (e.g., "There is an article in the newspaper"). We do not use "in" to mean "broadcast by."
• b) at: This preposition is typically used for specific locations or points (e.g., "at the cinema," "at home," "at a specific time"). It is not the conventional choice for a general broadcast medium.
• c) within: This is a more formal synonym for "inside" or "during a period of time" (e.g., "within the boundaries," "you must reply within an hour"). It does not fit the context of television broadcasting.