April 1912. News arrives that threatens Downton Abbey's future: Lord Grantham's (Robert Crawley) cousin, James Crawley, heir presumptive to the earldom, and his son, Patrick, have died in the RMS Titanic disaster.
Episode 1.01 (Downtown Abbey episode)
2010s
for 2010s in TV Episodes By Decade
Suggested by hitojaf564
Yes cartoons count.