Part of that is KCOP has been simulcasting Decades programming in the middays (9am-1pm) for the last couple of months, and I Love Lucy is included in a block of sitcom classics that include The Lucy Show, Mary Tyler Moore, and Dick Van Dyke; I Love Lucy airs in the 10am hour. However, KCOP has broke from the Decades simulcast on certain days (today [8/16] being one of them) to air a mini-marathon of whatever shows Decades has rights to--today, they aired the Simon Baker early 2000s series, The Guardian, which also aired this past weekend as part of Decades' Weekend Binge marathon.
I don't think this KCOP-Decades daytime simulcast will last beyond early or mid-September, when the new fall schedules start to take hold. It's been nice counter-programming to what the other stations have been airing as of late.