In many cases,
TV Antenna Repairs are worth considering before replacing the entire system. I experienced similar issues with pixelation and signal dropouts, and the cause turned out to be weather-damaged cabling and a loose antenna connection rather than the antenna itself.
A few signs that repairs may be enough include:
Intermittent signal loss
Damaged cables or connectors
Antenna misalignment after strong winds
Reception issues affecting only certain channels
Replacement may be necessary if the antenna is severely corroded, physically damaged, or no longer suitable for current broadcast requirements.
I spoke with Metro TV Antenna about a similar problem, and they explained that a professional inspection can often identify whether a simple repair will restore reception quality or if upgrading the system is the better long-term solution.