other than fox and facebook, the other 'forgotten' major conduit for low information (and elderly) voters are local broadcast channels.

these were rife with vitriol among the GOP during primaries, and trump has yet to splurge GOP coffers for local ads.
in the meantime, your friendly local newstaff is coreced into rightwing editorials by corporate parent sinclair.
this is fairly powerful, since watchers are quite comfortable with local personalities that have been watching for 1-2 decades.

for various reasons (FCC and money), sinclair has been unable to increase its multi-station (ABC,CBS,NBC) markets.
wiki indicates where low info voters would be most vulnerable to propaganda, such as Floribama.
en.wikipedia.org - List of stations owned or operated by Sinclair Broadcast Group

salon.com - How a semi secret right wing media empire is blanketing america with lies

on the flipside, sinclair is "happy" (i.e., has to) take Democrat money for airtime, and those ads have been running since trump's conviction. (yes, i watch too much broadcast sports)