Researchers from the University of California San Diego managed to develop "biopxels" - made from bioluminescent E. coli bacteria. The researchers managed to sync a colony of bacteria using quorum sensing. Each colony is thus a single "pixel". The researchers produced a "chip" which holds 13,000 colony-pixels (a total of about 50 million bacteria).

This technology isn't likely to lead us to biology TVs, but the researchers do hope to develop this technology for biological sensors.