Best-bets for April 3: “Walker” returns; sun departs
1) “Nova,” 9 p.m., PBS. A solar eclipse (shown here) requires lots of coincidences, we’re told. That starts with the fact that the sun is 400 times the moon’s size and 400 times as far away. The April 8 eclipse will cut a swath from Dallas to Montreal, with 4-plus minutes of blackout. The start of this interesting hour has warnings – even with special glasses, don’t look through a telescope or camera – and details. Read more…