Πού είναι το τηλεχειριστήριο; Θέλω να κλείσω την τηλεόραση.

No. In Greek, ; is the question mark.

So:

• Πού είναι το τηλεχειριστήριο; = Where is the remote control?

A Greek semicolon is written as · (a raised dot), not ;.

Πού means where, and Greek usually puts question words near the front of the sentence.

So:

• Πού είναι το τηλεχειριστήριο;
  literally: Where is the remote control?

This is very normal Greek word order for a wh-question.

Greek often drops subject pronouns when they are clear from the verb ending.

• Θέλω already means I want
• so Greek does not need εγώ (I) here

You could say Εγώ θέλω..., but that would usually add emphasis, like I want...

Θέλω να + verb is the standard Greek way to say want to do something.

So:

• Θέλω να κλείσω = I want to turn off / close

Unlike English, Greek does not use an infinitive here.
English says want to close, but Greek uses:

• θέλω = I want
• να κλείσω = roughly that I close / to close

So να is a very common particle used before verb forms in this kind of structure.

Because after να, Greek often chooses between different verb stems depending on the meaning.

• να κλείσω = a single, complete action
• να κλείνω = more like a repeated, habitual, or ongoing action

Here, turning off the TV is one complete action, so να κλείσω is the natural choice.

Yes, κλείνω can mean both close and turn off, depending on the object.

For example:

• κλείνω την πόρτα = I close the door
• κλείνω την τηλεόραση = I turn off the TV
• κλείνω το φως = I turn off the light

Its opposite is often ανοίγω, which can mean both open and turn on.

Greek uses the definite article very regularly, often more than English does.

Here:

• το τηλεχειριστήριο = the remote control
• την τηλεόραση = the television / TV

In this sentence, the articles sound fully natural and are normally expected.

Because the two nouns have different genders.

• το τηλεχειριστήριο is neuter
• η τηλεόραση is feminine

Greek articles must agree with the noun in gender, number, and case.

So here you get:

• το for the neuter noun τηλεχειριστήριο
• την for the feminine noun τηλεόραση

Because τηλεόραση is the direct object of κλείσω.

Greek changes the article depending on the noun’s case.

For feminine singular:

• η τηλεόραση = nominative (subject form)
• την τηλεόραση = accusative (object form)

In Θέλω να κλείσω την τηλεόραση, the TV is the thing being turned off, so Greek uses the accusative.

It is in the nominative, because it is the thing whose location is being asked about:

• Πού είναι το τηλεχειριστήριο; = Where is the remote control?

For neuter nouns like τηλεχειριστήριο, the article το is the same in both nominative and accusative, so the form does not change here.

A rough pronunciation guide:

• Πού = poo
• είναι = EE-ne
• το = to
• τηλεχειριστήριο = tee-le-hee-ree-STEE-ree-o
• Θέλω = THE-lo
• να = na
• κλείσω = KLEE-so
• την τηλεόραση = teen te-le-O-ra-see

A few helpful notes:

• ού in Πού sounds like oo
• ει in είναι sounds like ee
• the accent mark shows the stressed syllable:
  • τηλεχειριστήριο
  • τηλεόραση
  • κλείσω

Yes. τηλεόραση is the standard word and can refer both to:

• the device itself
• television as a medium, depending on context

In everyday speech, κλείνω την τηλεόραση is the normal way to say I turn off the TV.

Yes, to some extent, but the version you have is the most straightforward and natural.

For example:

• Πού είναι το τηλεχειριστήριο;
• Θέλω να κλείσω την τηλεόραση.

This is neutral and standard. Greek can move things around for emphasis, but learners should treat this version as the default pattern.

It is a compound word:

• τηλε- = far, distant (as in tele- in English)
• χειριστήριο = something used for handling/controlling

So τηλεχειριστήριο is literally something like a device for controlling from a distance, which matches remote control very well.