HTC is in hot water over its Sense Home application on some of its smartphones, with the Taiwanese giant using the push notifications to throw ads for the new Fantastic Four movie onto some users' devices.
A thread on Reddit has 'impersonaljesus' reporting that even though they were using a custom launcher, "this ad was pushed to my phone". You can disable notifications from the Sense Home app by going into the app settings and disabling the ability of push notifications, but you shouldn't need to be putting up with forced advertisement from HTC like this, no matter what setting is enabled or disabled.