in almost 40 years of watching tv there are far too many to count. Those that are set in stone for all eternity are Star Trek DS9, Only fools and horses, Edge of Darkness, Yes Minister, The Day Today, Frasier, Better Call Saul, Hannibal 1-2, Bottom, Granada's Sherlock Holmes, The Office OG, 24, all of which i consider the pinnacle of tv in their respective genres