I'm in doubt if this is the correct usage of the word canalized:
In the US a researching team found that pure entertainment, such as TV series or movies, have a great impact which can also be canalized towards educational needs.
It is correct figurative usage; Merriam-Webster’s definitions include “to direct into preferred channels”, and their sample usage is quite similar to your example:
On the other hand, it sounds quite stilted to my ear; channelled would seem completely equivalent, and is much more commonly used. Obligatory (but quite interesting) Google Ngrams search:
Perhaps canalize is more common as a piece of jargon, or possibly as a technical term, within some business or charity communities, with subtly different connotations from channel?
Why do you doubt it?
The usage you cite is figurative, describing the channeling of an already existing force into a beneficial usage of some kind.