Professional... Halloween season...
Is this televised?
Technically?
https://www.haashow.com/
The professional Halloween season kicks off each year in St. Louis, MO every mid March. Basically the biggest names in the industry get together, sell stuff, hold workshops, network, etc. It's basically the biggest professional Halloween trade show in the world. From there, there's the Midwest Haunter's Convention in June but this one is actually open to the public:
https://www.midwesthauntersconvention.com/
After this, there's a bunch of smaller shows throughout the United States until about mid August typically.
For professional "haunters", the year typically goes like this:
March - June: Planning and Convention Season. Networking, buying stuff for the haunt, going to conventions, drawing up employee protocol, negotiating insurance and lease rates if the haunter doesn't own their haunt property, etc.
June- mid August: Construction and Updates, getting marketing and promotional materials ready
mid August - late September: hiring, marketing campaigns, touch ups on haunts
late September - early November: "Halloween Season"
Mid November - March: "Off season", bigger haunts do Christmas, Valentine's Day, etc events but most can't afford it because off season insurance rates are hilariously high. Full review what what "worked" and what didn't. Planning begins for next season if the haunt was successful enough.
I'm not a "haunter" myself but I work very closely with them and a good number of Halloween oriented businesses including Spirit Halloween. Contrary to popular belief, it is very serious and not just for "funsies." There's people that do this sort of thing full time and earn a living doing it. Halloween is currently about a 9 billion dollar industry and these numbers are estimated to keep climbing for years to come. The American Halloween industry also has close to half the country participating with the typical "Halloweener" spending an average of about $90 throughout the season. All this said, yes, the professional Halloween industry is definitely a thing.