Learn Spanish (Latin America): Ojalá que ustedes escuchen tanto el canal como el podcast. - I hope that you all listen to both the channel and the podcast.

The phrase tanto... como... literally translates to 'as much... as...'. However, when used together to connect two things like this, it is the standard Spanish way to say 'both... and...'. It emphasizes that you are talking about both el canal and el podcast equally.

Does tanto ever change to tantos or tanta in this structure to match the nouns?

No, it stays exactly as tanto. You might remember changing this word to match nouns in phrases like tanta gente (so much people) or tantos libros (so many books). But when used as part of the fixed pair tanto... como... to mean 'both... and...', it never changes gender or number.

Why is the verb escuchen instead of escuchan?

The word ojalá expresses a strong hope or desire. Because it sets up a hope rather than a stated fact, it always triggers the subjunctive mood. That is why the regular present tense escuchan changes to the subjunctive escuchen.

Do I always need to include que after Ojalá?