Below you can find logos, similar to the SKY sports Extra.

Emirates SkyCargo Emirates SkyCargo vector
Red Sail Sports Red Sail Sports vector
LIGHTFOOTSPORTS2 LIGHTFOOTSPORTS2 vector
1 Extra 1 Extra vector
CD EXTRA CD EXTRA  vector
Australian Sports Commission Australian Sports Commission vector
SKY movies active 36 SKY movies active 36 vector
Extra-N 248 Extra-N 248 vector
Nizhegorodsky Dohodny Dom Nizhegorodsky Dohodny Dom vector
Browning Racquet Sports Browning Racquet Sports vector
Komarovsky Zavod Komarovsky Zavod vector
E T The Extra-Terrestrial E T  The Extra-Terrestrial vector
SKY one 40 SKY one 40 vector
TENNENT S EXTRA TENNENT S EXTRA  vector
Sormovsky 2 Sormovsky 2 vector