What common digital video artifact is characterized by blockiness and blurring, often linked to cable distribution issues?

The common digital video artifact characterized by blockiness and blurring, often linked to cable distribution issues, is best described by the term relating to compression artifacts. Compression artifacts occur when there is a loss of detail in the video due to compression algorithms that reduce file size for transmission. When digital video is compressed, particularly at lower bandwidths, it can lead to visual anomalies such as blockiness (where the image appears as large blocks of color) and blurring, as fine details can become lost. This is particularly prevalent in situations involving cable distribution where bandwidth may be constrained, leading to more aggressive compression and consequently more noticeable artifacts. Understanding these artifacts is crucial for troubleshooting and ensuring optimal video quality in digital transmission systems.