The sun outages (also called solar interference) you are describing only occur for a few times a year for each geostationary satellite and are very short. They most certainly affect satellite TV carriers.
From a carriers website it seems there is potential for outages for 15 minutes a day for 6 days.
The effects are seen on most channels and occur during various times of the day, lasting up to 15 minutes.
You may experience short service interruptions between Friday, March 3, 2017 and Wednesday, March 8, 2017
This site describes how the outages are caused.
The degree of interference caused by a satellite solar outage varies from slight signal degradation to complete loss of signal as the downlink is swamped by the noise from the Sun.
The duration of the sun outage depends on several things: the beam width of the field of view of the receiving ground antenna, the apparent radius of the Sun as seen from the Earth (about 0.25°), the RF energy given off by the Sun, the transmitter power of the satellite, the gain and S/N performance of the ground station receive equipment, and other factors. All of this can be used to determine the outage angle of the receive antenna. The outage angle is defined as the separation angle (measured from the ground station antenna) between the satellite and the Sun at the time when sun outage or signal degradation begins or ends (see diagram).
Differences in outaged between services and carriers can often be related to which satellite is being used. for example a satellite tv installation might be using geostationary satellites in orbital positions 110, 119, and 129 degrees. Only the services on a satellite that you are actually using, and that passes very close to the sun from your point of view will be affected.
Sites such as this can be used to predict outages for particular services and to see how using a different satellite changes the results.