MGM+‘s American Hostage is a TV show based on a podcast about the power of radio, a chaotic media-hopping smorgasbord that feels oddly appropriate when you watch the eight-part series that flirts with a number of contemporary topics but ends up being mostly well-acted, over-extended nostalgia for landline telephones and manageable institutional corruption. Created by the talented Shawn Ryan and Eileen Myers (The Night Agent) and boasting an ensemble led by a likably understated Jon Hamm and a convincingly overstated Giovanni Ribisi, American Hostage starts off promisingly, peaks in the middle and overstays its welcome — in part because…
