I took part in the Cosmobot Competition in March of 2011 with the 3 kg sumo robot “Albertito”.
Cosmobot, back in 2011, was the most relevant robotic event in Spain taking part in the LNRC (robotic liga).
The tve2 channel (Spanish public tv) covered the event of Cosmobot 2011 with special coverage on the scientific divulgation program “La Aventura del Saber”.
The full video can be found on the tv2 repository (starting on the minute 31.00 until the end), the robotic competition video can be seen. I am at the minute 40:50.