Surveillance by electronic means (e.g. television)(noun)
WordNet. Princeton University. 2010.
Use "electronic surveillance" in a sentence
"He spent the remainder of the day at home, which the electronic surveillance guy had told him was bug-free."
"They’d spotted her easily from the roofs — the Stompers had electronic surveillance equipment installed on most of the rooftops in Cemetery Ridge, particularly those areas near Cinnamon Road — and she’d shown up during one of their routine scans."