A method of acquiring and accumulating data from a server via a network is provided. A request is transmitted for a plurality of items of data and includes at least one ingestion marker associated with the data. The at least one ingestion marker represents a last occurrence of when a change was made to the data. Data is received with a transfer protocol in response to the request. The data has at least one associated ingestion marker different than the at least one associated ingestion marker transmitted with the request. The received data and the at least one associated ingestion marker is stored in memory. The request is transmitted and the data is received and stored electronically by an electronic client device communicating with the server over the network. A system of acquiring and accumulating Electronic Program Guide (EPG) data from a web-server over a network is also disclosed.