Hmmm been watching this thread for a while (Was around when the /x/ thread was made).
Just made this account to say that it's actually a viable option and shouldn't be illegal since at most the psychologist needs your permission and some forms to be signed.
At one point in time my old therapist suggested using something similar to find the root of a trauma, but I refused since from what I understood it'd mean going into deep hypnosis and experimenting the events again to some degree, which may be a tad traumatic for Santa given that he has been terrified for 28 years of the Clock Man.
Then there's the whole issue of infantile amnesia or whatever it's called in English (Sorry, english isn't my first language). Before a certain age kids' memories don't really carry in your mind as you grow up, hence why most people have no recollection of their first few years except for important events here and there. It's obvious that you remember the clock man itself to some degree, but what if you were too young and your memories about the show or the context of it are nowhere to be found?
It's worth a shot if you have the money Santa, just don't get your hopes too high just in case... Also, a psychologist will do just fine, no need for a psychiatrist unless you do prefer that.