क्या तुम टीवी देख रहे हो?

Not in this sentence. Here क्या is being used as a yes/no question marker at the beginning of the sentence.

So:

• क्या तुम टीवी देख रहे ho? = Are you watching TV?

In other sentences, क्या can mean what, but context and word order tell you which use it has.

In Hindi, क्या often goes at the start of a sentence to turn it into a yes/no question.

So the pattern is:

• क्या + subject + object + verb

Here:

• क्या = question marker
• तुम = you
• टीवी = TV
• देख रहे हो = are watching

Hindi can also ask the same question without क्या, just with questioning intonation:

• तुम टीवी देख रहे हो?

That is very common in speech.

Hindi usually follows Subject–Object–Verb order, while English usually uses Subject–Verb–Object.

So English says:

• Are you watching TV?

Hindi is arranged more like:

• You TV watching are?

That is why the verb part देख रहे हो comes at the end.

Hindi has different words for you, depending on familiarity and politeness.

• तू = very informal, very intimate, sometimes rude if used wrongly
• तुम = familiar, casual, normal with friends, siblings, people your age, etc.
• आप = polite/respectful

So तुम here suggests the speaker is talking casually to someone they know fairly well.

If you wanted a respectful version, you would say:

• क्या आप टीवी देख रहे हैं? for a male or general respectful address
• क्या आप टीवी देख रही हैं? for a female

Yes, टीवी is a borrowed word from English TV. Hindi uses many everyday loanwords like this.

A learner should also notice that Hindi does not need an article here. English says watching TV, not usually watching the TV in this meaning, and Hindi simply says:

• टीवी देखना = to watch TV

There is no separate word for a or the here.

This is the present progressive construction, similar to English am/is/are ... -ing.

It breaks down like this:

• देख = watch / see, from the verb देखना
• रहे = progressive marker
• हो = are

So:

• देख रहे हो = are watching

This is the normal way Hindi expresses an action happening right now.

Because हो agrees with तुम.

Forms of to be in the present tense include:

• मैं ... हूँ = I am
• तुम ... हो = you are
• वह ... है = he/she/it is
• आप ... हैं = you are (polite)

So with तुम, the correct auxiliary is हो:

• तुम देख रहे हो
• not तुम देख रहे है

Yes. In this sentence, रहे is the masculine form.

So क्या तुम टीवी देख रहे हो? is normally said:

• to one male
• or to more than one person if the group is masculine or mixed

If you are speaking to one female, you would usually say:

• क्या तुम टीवी देख रही हो?

So the sentence as written usually suggests the listener is male.

For a female with तुम:

• क्या तुम टीवी देख रही हो?

For respectful you with आप:

• क्या आप टीवी देख रहे हैं? for a male
• क्या आप टीवी देख रही हैं? for a female

The main changes are:

• तुम → आप
• हो → हैं
• रहे / रही changes according to gender

That is a very important difference.

• क्या तुम टीवी देख रहे हो? = Are you watching TV right now?
• क्या तुम टीवी देखते हो? = Do you watch TV? / Do you watch TV regularly?

So:

• देख रहे हो = action in progress now
• देखते हो = habitual or general action

This is like the English difference between:

• Are you watching TV?
• Do you watch TV?

Yes.

You can say:

• क्या तुम टीवी देख रहे हो?
• तुम टीवी देख रहे हो?

Both can mean Are you watching TV?

In conversation, Hindi also sometimes puts क्या at the end:

• तुम टीवी देख रहे हो क्या?

That version is common in speech, though the beginning position is often what learners see first.

Yes, often it can. Hindi frequently drops subjects when they are already understood from context.

So in the right situation, someone might simply say:

• टीवी देख रहे हो?

That still means:

• Are you watching TV?

The verb ending हो already helps show that the speaker is talking to you.

A common transliteration is:

• kyā tum ṭīvī dekh rahe ho?

A rough English-friendly pronunciation is:

• kyaa tum tee-vee dekh ruh-hay ho

A few notes:

• क्या = kyaa
• टीवी = tee-vee
• देख has a long vowel, roughly dekh
• रहे sounds roughly like ruh-hay in careful speech

The h sounds are real consonants in Hindi, so try not to drop them completely.