I found this in the 2010 hunting and trapping guide page 34. Seems like you don't have to wear orange if your on your property. Someone else can help decipher the secret TWRA code ha ha.
Wild hog hunting
Wild hogs are defined as any wild swine
found in Tennessee. They are considered
big game therefore a Big Game license is
required. Blaze orange must be worn at
all times while hunting wild hogs with a
firearm unless hunting on the person’s own
property. Wild hogs are not required to be
tagged or checked in at big game checking
stations. We encourage you to call in any
wild hog harvested to the Wildlife Division
at: (615) 781-6621 to help us monitor their
spread.
Wild hog gun season is open year-round
except as noted. Blaze orange required.
Private land
Public Hunting Areas are considered private
land.
• Season open year-round, 30-minutes
before sunrise to 30-minutes after sunset.
No limit, either sex. No dogs allowed
except as listed in the chart on this page.
Legal Equipment
Any centerfire rifle or handgun, shotguns
with slugs, muzzleloaders (.40 cal. or larger),
and archery equipment.
During Deer and Bear Seasons: A big game
hunter may take a wild hog with whatever
hunting device is legal during the deer and
bear seasons.
During Turkey Season: Wild hogs may be
hunted with any legal hunting device during
the spring turkey season; however, blaze
orange must be worn at all times. Turkey
hunters may take a wild hog with archery
equipment during the spring turkey season.