Crossword Puzzle 4: Pop Culture & Tech

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Across
  1. 3. A design symbol for a brand
  2. 4. Marvel and DC both make these
  3. 7. Pictures you send in text messages
Down
  1. 1. Sound-based media popular before TV
  2. 2. A fast blue video-game hedgehog
  3. 5. Something you watch at the cinema
  4. 6. Popular short-video app