Το τηλεχειριστήριο είναι πάνω στο τραπεζάκι δίπλα στον καναπέ.

Greek uses the definite article much more regularly than English. In this sentence:

• το τηλεχειριστήριο = the remote control
• στο τραπεζάκι = on the small table
• στον καναπέ = next to the sofa

So even where English might sound natural with fewer thes, Greek normally keeps them.

Also:

• στο = σε + το
• στον = σε + τον

So some of these forms already contain both a preposition and an article.

Because τηλεχειριστήριο is a neuter singular noun.

Its basic forms are:

• το τηλεχειριστήριο = nominative / accusative singular
• του τηλεχειριστηρίου = genitive singular

In this sentence, it is the subject of είναι, so it appears in the nominative: το τηλεχειριστήριο.

είναι is the 3rd person singular of είμαι (to be).

So:

• είμαι = I am
• είσαι = you are
• είναι = he/she/it is

Here it means is, referring to το τηλεχειριστήριο.

πάνω στο means on, literally something like on top of / upon.

• στο τραπεζάκι by itself could mean at / on / in the small table, depending on context
• πάνω στο τραπεζάκι clearly means the remote is on top of the table surface

So πάνω makes the location more specific.

στο is a contraction of:

• σε = in / at / on / to
• το = the

So:

• σε το → στο

This contraction is standard and very common in modern Greek.

τραπεζάκι is a diminutive form of τραπέζι.

• τραπέζι = table
• τραπεζάκι = little table, small table, coffee table

The ending -άκι often makes a noun sound:

• smaller
• more informal
• sometimes more affectionate

In this sentence, τραπεζάκι most naturally suggests a small table or side table.

δίπλα means next to / beside.

It often appears in patterns like:

• δίπλα σε
  • noun
• δίπλα από
  • noun

In this sentence, we have:

• δίπλα στον καναπέ = next to the sofa

So δίπλα functions as a word of place, followed by a prepositional phrase showing what something is next to.

στον is a contraction of:

• σε
  • τον

The noun καναπές is a masculine noun:

• ο καναπές = the sofa/couch

After σε, Greek uses the accusative, so it becomes:

• τον καναπέ

That is why the full phrase is:

• σε τον καναπέ → στον καναπέ

So the change is:

• dictionary form: ο καναπές
• after σε: τον καναπέ

Both are in the accusative, because they follow σε.

Even though the sentence uses the contracted forms στο and στον, the underlying structure is:

• σε το τραπεζάκι
• σε τον καναπέ

And σε normally takes the accusative in modern Greek.

So:

• τραπεζάκι = accusative singular neuter
• καναπέ = accusative singular masculine

Because many neuter nouns have the same form in the nominative and accusative singular.

For τραπεζάκι:

• nominative: το τραπεζάκι
• accusative: το τραπεζάκι

So the article and the sentence structure tell you the function, even though the noun itself does not change.

Most naturally, it describes the table:

• πάνω στο τραπεζάκι [that is] next to the sofa

So the idea is:

• the remote is on the small table
• that small table is next to the sofa

In real life, context helps. Grammatically, the phrase comes right after τραπεζάκι, so it most naturally attaches to that noun.

Yes. Greek word order is more flexible than English, because the articles and case endings help show the relationships between words.

The neutral, natural order here is:

• Το τηλεχειριστήριο είναι πάνω στο τραπεζάκι δίπλα στον καναπέ.

But you could also say:

• Πάνω στο τραπεζάκι δίπλα στον καναπέ είναι το τηλεχειριστήριο.

That version puts more emphasis on the location first. The original sentence is the most straightforward and natural for a learner to use.

Yes, in standard Greek it is normally kept here.

You will often hear about the final -ν being dropped in some contexts, but before words beginning with certain consonants, it is usually retained. Since καναπέ starts with κ, στον καναπέ is the standard form.

So for learners, the safest choice is:

• στον καναπέ

not

• στο καναπέ

It is a compound word:

• τηλε- = far, distance
• χειρίζομαι / χέρι is related to handling or hand-based control
• τηλεχειριστήριο = something used for remote control

You do not need to analyze it every time you use it, but seeing the parts can help you remember it. It is the standard everyday Greek word for remote control.