RPC Canal 4

Background
RPC-TV is a television network, and is headquartered in Panama City, Panama, with repeaters throughout the country. The station broadcasts in NTSC format and in Panama City also in DVB-T format. Founded on late 1958, RPC is the oldest commercial TV station in Panama and Central America overall, airing imported shows, programming for kids, and local and international sporting events. It didn't use a logo until 1960.

1st Logo (1960-1968)
Logo: Unknown.

Technique: Unknown, as it's logo for now is only a capture for it's long-lost existence.

Music/Sounds: Unknown.

Availability: Long since extinct. We are unsure if there's a video of this logo, as their first of it's broadcasting days are for now history.

2nd Logo (1968-1983)
Logo: Unknown.

Trivia: RPC's iconic logo came from a pre-Columbian piece called Huaca.

Technique: None, which makes this logo more ominous.

Music/Sounds: None.

Music/Sounds Variant: On startups and closedowns, they used it's national anthem (Himno Istmeño) as it's music. Sometimes it would use it's stock music, "Lamento" composed by Avelino Muñoz.

Availability: Extinct.

3rd Logo
Unknown, and so are the rest.