Il doppiaggio italiano di questa serie mi piace molto.

Because piacere works differently from English to like.

In Italian, piacere literally works more like to be pleasing to someone.

So in this sentence:

• Il doppiaggio italiano di questa serie = the thing that is pleasing
• mi = to me
• piace = is pleasing

So the structure is basically:

• The Italian dubbing of this series is very pleasing to me

That is why Italian says mi piace, not io piace.

• io piace is ungrammatical
• mi piaccio would mean I like myself / I am pleasing to myself

The subject is:

Il doppiaggio italiano di questa serie

That whole noun phrase is the thing doing the piacere.

This is important because with piacere, the thing liked is the grammatical subject.

Since doppiaggio is singular, the verb is singular too:

• piace = singular
• piacciono = plural

For example:

• Il doppiaggio mi piace = I like the dubbing
• I doppiaggi mi piacciono = I like the dubbings

Il is the definite article, meaning the.

Italian uses articles more often than English does. Here, il doppiaggio italiano di questa serie refers to a specific thing: the Italian dubbing of this particular series.

So il is natural and necessary here.

Also, doppiaggio is:

• masculine
• singular

So the correct article is il.

Doppiaggio means dubbing or dub.

It can refer to:

• the process of replacing the original voices
• the dubbed soundtrack/version itself

In this sentence, the most natural meaning is:

• the Italian dub
• or the Italian dubbing

So the speaker is saying they like the Italian dubbed version of the series very much.

In Italian, adjectives often come after the noun.

So:

• doppiaggio italiano = Italian dubbing / Italian dub

That word order is completely normal.

If an adjective comes before the noun in Italian, it often changes the tone or emphasis, and in many cases it simply would not sound as natural here.

So doppiaggio italiano is the standard order.

In this context, it normally means the Italian-language dubbing: the dub in Italian.

That is the meaning learners should understand here.

In real life, context usually makes this clear. If someone is talking about a TV series, il doppiaggio italiano almost always means the Italian dub.

If you want to be extra explicit, Italian can also say:

• il doppiaggio in italiano

But il doppiaggio italiano is very common and natural.

Because questa already acts as the determiner.

You can have:

• della serie = of the series
• di questa serie = of this series

But you do not combine the article with questa here.

So:

• di + la serie → della serie
• di + questa serie → di questa serie

No contraction happens with questa.

They can be. Nouns ending in -e can be either masculine or feminine, so you often have to learn the gender individually.

Here:

• serie is feminine
• singular: questa serie
• plural: queste serie

A useful extra point: serie has the same form in singular and plural. The article or determiner tells you the number:

• questa serie = this series
• queste serie = these series

Because mi is an unstressed object pronoun, and in Italian these pronouns usually come before a conjugated verb.

So:

• mi piace = I like / it is pleasing to me

The fuller version would be:

• a me piace

But that sounds more emphatic. The normal everyday form is mi piace.

You will see the same pattern with other pronouns:

• ti piace = you like
• gli piace = he likes / she likes
• ci piace = we like

Here molto means a lot or very much.

So:

• mi piace molto = I like it very much / I like it a lot

It is modifying the verb phrase, not the noun.

Compare:

• mi piace molto = I like it a lot
• molto doppiaggio = a lot of dubbing

In your sentence, it clearly goes with piace.

Yes, absolutely.

Both are correct:

• Il doppiaggio italiano di questa serie mi piace molto.
• Mi piace molto il doppiaggio italiano di questa serie.

The difference is mainly one of focus and style.

• Starting with Il doppiaggio italiano di questa serie... puts the topic first
• Starting with Mi piace molto... sounds a bit more immediately personal and conversational

Italian word order is more flexible than English word order, especially with sentences like this.

No. In this sentence, mi is necessary.

You can often leave out subject pronouns in Italian, such as io, tu, noi, because the verb ending already shows the subject.

But mi is not a subject pronoun. It means to me, and it carries essential information.

So:

• Mi piace molto = correct
• Piace molto = means it is very pleasing, but it no longer tells us to whom

So if you want to say I like it very much, you need mi.