World Television Day is observed every year on which date according to the United Nations calendar of international days?

Introduction / Context:
This question focuses on World Television Day, one of the many United Nations designated international days. Examinations often include such days to test awareness of global observances and the themes behind them. Knowing the correct date helps you distinguish this day from other communication related observances.

Given Data / Assumptions:

• The observance being asked about is World Television Day.
• It is an annual United Nations international day.
• The options list four different dates in various months plus an extra distractor, and only one corresponds to the official UN date.

Concept / Approach:
The approach here is straightforward factual recall. World Television Day commemorates the growing impact of television as a medium for communication and global information sharing. The main steps are:

• Remember that the United Nations observes World Television Day on 21st November each year.
• Use elimination to discard dates that belong to other events or that do not correspond to known UN days.
• Select the correct date from the shortlisted options.

Step-by-Step Solution:
Step 1: Identify that the question is about World Television Day, not World Press Freedom Day or World Radio Day. Step 2: Recall that World Television Day is officially observed on 21st November every year. Step 3: Look at the options and find which one matches 21st November. Step 4: Recognise that 22nd October, 23rd September and 24th August correspond to other possible events or are simply distractors. Step 5: Conclude that 21st November is the correct answer.

Verification / Alternative check:
To verify, one can check the list of international days on the official United Nations website or in a trusted general knowledge yearbook. These sources clearly record World Television Day on 21st November each year. Many media outlets also refer to it on this date, highlighting discussions about the role of television in promoting information, cultural exchange and global awareness.

Why Other Options Are Wrong:
22nd October: Not associated with World Television Day and is included only as a distractor. 23rd September: Another random date that does not match the official UN observance for television. 24th August: Unrelated to this particular international day. 20th November: Very close to the correct date but still one day earlier, which can mislead candidates who only remember the month.

Common Pitfalls:
A frequent mistake is to mix up World Television Day with other communication or media related observances and to rely only on rough memory such as “it is in November”. This can cause confusion between 20th and 21st November. Some candidates also guess randomly among dates that look similar or fall in the same season. To avoid this, it helps to connect the date 21st November firmly with the idea of television as a global medium highlighted by the United Nations.

Final Answer:
World Television Day is observed every year on 21st November.