  We present the results of a search for Miras and long-period variables (LPVs)
in M33 using griJHKs archival observations from the Canada-France-Hawai'i
Telescope. We use multiband information and machine learning techniques to
identify and characterize these variables. We recover ~1,300
previously-discovered Mira candidates and identify ~13,000 new Miras and LPVs.
We detect for the first time a clear first-overtone pulsation sequence among
Mira candidates in this galaxy. We use O-rich, fundamental-mode Miras in the
LMC and M33 to derive a distance modulus for the latter of 24.629 +/- 0.046
mag.
